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RC.CONF(5)                FreeBSD File Formats Manual               RC.CONF(5)

NAME
     rc.conf - system configuration information

DESCRIPTION
     The file rc.conf contains descriptive information about the local host
     name, configuration details for any potential network interfaces and
     which services should be started up at system initial boot time.  In new
     installations, the rc.conf file is generally initialized by the system
     installation utility, sysinstall(8).

     The purpose of rc.conf is not to run commands or perform system startup
     actions directly.  Instead, it is included by the various generic startup
     scripts in /etc which conditionalize their internal actions according to
     the settings found there.

     The /etc/rc.conf file is included from the file /etc/defaults/rc.conf,
     which specifies the default settings for all the available options.
     Options need only be specified in /etc/rc.conf when the system
     administrator wishes to override these defaults.  The file
     /etc/rc.conf.local is used to override settings in /etc/rc.conf for
     historical reasons.  In addition to /etc/rc.conf.local you can also place
     smaller configuration files for each rc(8) script in the /etc/rc.conf.d
     directory, which will be included by the load_rc_config function.  For
     jail configurations you could use the file /etc/rc.conf.d/jail to store
     jail specific configuration options.  Also see the rc_conf_files variable
     below.

     Options are set with ``name=value'' assignments that use sh(1) syntax.
     The following list provides a name and short description for each
     variable that can be set in the rc.conf file:

     rc_debug    (bool) If set to ``YES'', enable output of debug messages
                 from rc scripts.  This variable can be helpful in diagnosing
                 mistakes when editing or integrating new scripts.  Beware
                 that this produces copious output to the terminal and
                 syslog(3).

     rc_info     (bool) If set to ``NO'', disable informational messages from
                 the rc scripts.  Informational messages are displayed when a
                 condition that is not serious enough to warrant a warning or
                 an error occurs.

     rc_startmsgs
                 (bool) If set to ``YES'', show ``Starting foo:'' when
                 faststart is used (e.g., at boot time).

     early_late_divider
                 (str) The name of the script that should be used as the
                 delimiter between the ``early'' and ``late'' stages of the
                 boot process.  The early stage should contain all the
                 services needed to get the disks (local or remote) mounted so
                 that the late stage can include scripts contained in the
                 directories listed in the local_startup variable (see below).
                 Thus, the two likely candidates for this value are
                 mountcritlocal for the typical system, and mountcritremote if
                 the system needs remote file systems mounted to get access to
                 the local_startup directories; for example when /usr/local is
                 NFS mounted.  For rc.conf within a jail(8) NETWORKING is
                 likely to be an appropriate value.  Extreme care should be
                 taken when changing this value, and before changing it one
                 should ensure that there are adequate provisions to recover
                 from a failed boot (such as physical contact with the
                 machine, or reliable remote console access).

     always_force_depends
                 (bool) Various rc.d scripts use the force_depend function to
                 check whether required services are already running, and to
                 start them if necessary.  By default during boot time this
                 check is bypassed if the required service is enabled in
                 /etc/rc.conf[.local].  Setting this option will bypass that
                 check at boot time and always test whether or not the service
                 is actually running.  Enabling this option is likely to
                 increase your boot time if services are enabled that utilize
                 the force_depend check.

     swapfile    (str) If set to ``NO'', no swapfile is installed, otherwise
                 the value is used as the full pathname to a file to use for
                 additional swap space.

     <name>_chroot
                 (str) chroot to this directory before running the service.

     <name>_user
                 (str) Run the service under this user account.

     <name>_group
                 (str) Run the chrooted service under this system group.
                 Unlike the _user setting, this setting has no effect if the
                 service is not chrooted.

     <name>_fib  (int) The setfib(1) value to run the service under.

     <name>_nice
                 (int) The nice(1) value to run the service under.

     apm_enable  (bool) If set to ``YES'', enable support for Automatic Power
                 Management with the apm(8) command.

     apmd_enable
                 (bool) Run apmd(8) to handle APM event from userland.  This
                 also enables support for APM.

     apmd_flags  (str) If apmd_enable is set to ``YES'', these are the flags
                 to pass to the apmd(8) daemon.

     devd_enable
                 (bool) Run devd(8) to handle device added, removed or unknown
                 events from the kernel.

     ddb_enable  (bool) Run ddb(8) to install ddb(4) scripts at boot time.

     ddb_config  (str) Configuration file for ddb(8).  Default /etc/ddb.conf.

     kld_list    (str) A list of kernel modules to load right after the local
                 disks are mounted.  Loading modules at this point in the boot
                 process is much faster than doing it via /boot/loader.conf
                 for those modules not necessary for mounting local disk.

     kldxref_enable
                 (bool) Set to ``NO'' by default.  Set to ``YES'' to
                 automatically rebuild linker.hints files with kldxref(8) at
                 boot time.

     kldxref_clobber
                 (bool) Set to ``NO'' by default.  If kldxref_enable is true,
                 setting to ``YES'' will overwrite existing linker.hints files
                 at boot time.  Otherwise, only missing linker.hints files are
                 generated.

     kldxref_module_path
                 (str) Empty by default.  A semi-colon (`;') delimited list of
                 paths containing kld(4) modules.  If empty, the contents of
                 the kern.module_path sysctl(8) are used.

     powerd_enable
                 (bool) If set to ``YES'', enable the system power control
                 facility with the powerd(8) daemon.

     powerd_flags
                 (str) If powerd_enable is set to ``YES'', these are the flags
                 to pass to the powerd(8) daemon.

     tmpmfs      Controls the creation of a /tmp memory file system.  Always
                 happens if set to ``YES'' and never happens if set to ``NO''.
                 If set to anything else, a memory file system is created if
                 /tmp is not writable.

     tmpsize     Controls the size of a created /tmp memory file system.

     tmpmfs_flags
                 Extra options passed to the mdmfs(8) utility when the memory
                 file system for /tmp is created.  The default is ``-S'',
                 which inhibits the use of softupdates on /tmp so that file
                 system space is freed without delay after file truncation or
                 deletion.  See mdmfs(8) for other options you can use in
                 tmpmfs_flags.

     varmfs      Controls the creation of a /var memory file system.  Always
                 happens if set to ``YES'' and never happens if set to ``NO''.
                 If set to anything else, a memory file system is created if
                 /var is not writable.

     varsize     Controls the size of a created /var memory file system.

     varmfs_flags
                 Extra options passed to the mdmfs(8) utility when the memory
                 file system for /var is created.  The default is ``-S'',
                 which inhibits the use of softupdates on /var so that file
                 system space is freed without delay after file truncation or
                 deletion.  See mdmfs(8) for other options you can use in
                 varmfs_flags.

     populate_var
                 Controls the automatic population of the /var file system.
                 Always happens if set to ``YES'' and never happens if set to
                 ``NO''.  If set to anything else, a memory file system is
                 created if /var is not writable.  Note that this process
                 requires access to certain commands in /usr before /usr is
                 mounted on normal systems.

     cleanvar_enable
                 (bool) Clean the /var directory.

     local_startup
                 (str) List of directories to search for startup script files.

     script_name_sep
                 (str) The field separator to use for breaking down the list
                 of startup script files into individual filenames.  The
                 default is a space.  It is not necessary to change this
                 unless there are startup scripts with names containing
                 spaces.

     hostapd_enable
                 (bool) Set to ``YES'' to start hostapd(8) at system boot
                 time.

     hostname    (str) The fully qualified domain name (FQDN) of this host on
                 the network.  This should almost certainly be set to
                 something meaningful, even if there is no network connection.
                 If dhclient(8) is used to set the hostname via DHCP, this
                 variable should be set to an empty string.  If this value
                 remains unset when the system is done booting your console
                 login will display the default hostname of ``Amnesiac''.

     nisdomainname
                 (str) The NIS domain name of this host, or ``NO'' if NIS is
                 not used.

     dhclient_program
                 (str) Path to the DHCP client program (/sbin/dhclient, the
                 OpenBSD DHCP client, is the default).

     dhclient_flags
                 (str) Additional flags to pass to the DHCP client program.
                 For the OpenBSD DHCP client, see the dhclient(8) manpage for
                 a description of the command line options available.

     dhclient_flags_<iface>
                 Additional flags to pass to the DHCP client program running
                 on iface only.  When specified, this variable overrides
                 dhclient_flags.

     background_dhclient
                 (bool) Set to ``YES'' to start the DHCP client in background.
                 This can cause trouble with applications depending on a
                 working network, but it will provide a faster startup in many
                 cases.

     background_dhclient_<iface>
                 When specified, this variable overrides the
                 background_dhclient variable for interface iface only.

     synchronous_dhclient
                 (bool) Set to ``YES'' to start dhclient(8) synchronously at
                 startup.  This behavior can be overridden on a per-interface
                 basis by replacing the ``DHCP'' keyword in the
                 ifconfig_<interface> variable with ``SYNCDHCP'' or
                 ``NOSYNCDHCP''.

     defaultroute_delay
                 (int) When set to a positive value, wait up to this long
                 after configuring DHCP interfaces at startup to give the
                 interfaces time to receive a lease.

     firewall_enable
                 (bool) Set to ``YES'' to load firewall rules at startup.  If
                 the kernel was not built with options IPFIREWALL, the ipfw.ko
                 kernel module will be loaded.  See also ipfilter_enable.

     firewall_script
                 (str) This variable specifies the full path to the firewall
                 script to run.  The default is /etc/rc.firewall.

     firewall_type
                 (str) Names the firewall type from the selection in
                 /etc/rc.firewall, or the file which contains the local
                 firewall ruleset.  Valid selections from /etc/rc.firewall
                 are:

                 open        unrestricted IP access
                 closed      all IP services disabled, except via ``lo0''
                 client      basic protection for a workstation
                 simple      basic protection for a LAN.

                 If a filename is specified, the full path must be given.

     firewall_quiet
                 (bool) Set to ``YES'' to disable the display of firewall
                 rules on the console during boot.

     firewall_logging
                 (bool) Set to ``YES'' to enable firewall event logging.  This
                 is equivalent to the IPFIREWALL_VERBOSE kernel option.

     firewall_flags
                 (str) Flags passed to ipfw(8) if firewall_type specifies a
                 filename.

     firewall_coscripts
                 (str) List of executables and/or rc scripts to run after
                 firewall starts/stops.  Default is empty.

     firewall_nat_enable
                 (bool) The ipfw(8) equivalent of natd_enable.  Setting this
                 to ``YES'' enables kernel NAT.  firewall_enable must also be
                 set to ``YES''.

     firewall_nat_interface
                 (str) The ipfw(8) equivalent of natd_interface.  This is the
                 name of the public interface or IP address on which kernel
                 NAT should run.

     firewall_nat_flags
                 (str) Additional configuration parameters for kernel NAT
                 should be placed here.

     dummynet_enable
                 (bool) Setting this to ``YES'' will automatically load the
                 dummynet(4) module if firewall_enable is also set to ``YES''.

     natd_program
                 (str) Path to natd(8).

     natd_enable
                 (bool) Set to ``YES'' to enable natd(8).  firewall_enable
                 must also be set to ``YES'', and divert(4) sockets must be
                 enabled in the kernel.  If the kernel was not built with
                 options IPDIVERT, the ipdivert.ko kernel module will be
                 loaded.

     natd_interface
                 (str) This is the name of the public interface on which
                 natd(8) should run.  The interface may be given as an
                 interface name or as an IP address.

     natd_flags  (str) Additional natd(8) flags should be placed here.  The -n
                 or -a flag is automatically added with the above
                 natd_interface as an argument.

     ipfilter_enable
                 (bool) Set to ``NO'' by default.  Setting this to ``YES''
                 enables ipf(8) packet filtering.

                 Typical usage will require putting

                 ipfilter_enable="YES"
                 ipnat_enable="YES"
                 ipmon_enable="YES"
                 ipfs_enable="YES"

                 into /etc/rc.conf and editing /etc/ipf.rules and
                 /etc/ipnat.rules appropriately.

                 Note that ipfilter_enable and ipnat_enable can be enabled
                 independently.  ipmon_enable and ipfs_enable both require at
                 least one of ipfilter_enable and ipnat_enable to be enabled.

                 Having

                 options IPFILTER
                 options IPFILTER_LOG
                 options IPFILTER_DEFAULT_BLOCK

                 in the kernel configuration file is a good idea, too.

     ipfilter_program
                 (str) Path to ipf(8) (default /sbin/ipf).

     ipfilter_rules
                 (str) Set to /etc/ipf.rules by default.  This variable
                 contains the name of the filter rule definition file.  The
                 file is expected to be readable for the ipf(8) command to
                 execute.

     ipv6_ipfilter_rules
                 (str) Set to /etc/ipf6.rules by default.  This variable
                 contains the IPv6 filter rule definition file.  The file is
                 expected to be readable for the ipf(8) command to execute.

     ipfilter_flags
                 (str) Empty by default.  This variable contains flags passed
                 to the ipf(8) program.

     ipnat_enable
                 (bool) Set to ``NO'' by default.  Set it to ``YES'' to enable
                 ipnat(8) network address translation.  See ipfilter_enable
                 for a detailed discussion.

     ipnat_program
                 (str) Path to ipnat(8) (default /sbin/ipnat).

     ipnat_rules
                 (str) Set to /etc/ipnat.rules by default.  This variable
                 contains the name of the file holding the network address
                 translation definition.  This file is expected to be readable
                 for the ipnat(8) command to execute.

     ipnat_flags
                 (str) Empty by default.  This variable contains flags passed
                 to the ipnat(8) program.

     ipmon_enable
                 (bool) Set to ``NO'' by default.  Set it to ``YES'' to enable
                 ipmon(8) monitoring (logging ipf(8) and ipnat(8) events).
                 Setting this variable needs setting ipfilter_enable or
                 ipnat_enable too.  See ipfilter_enable for a detailed
                 discussion.

     ipmon_program
                 (str) Path to ipmon(8) (default /sbin/ipmon).

     ipmon_flags
                 (str) Set to ``-Ds'' by default.  This variable contains
                 flags passed to the ipmon(8) program.  Another typical
                 example would be ``-D /var/log/ipflog'' to have ipmon(8) log
                 directly to a file bypassing syslogd(8).  Make sure to adjust
                 /etc/newsyslog.conf in such case like this:

                 /var/log/ipflog  640  10  100  *  Z  /var/run/ipmon.pid

     ipfs_enable
                 (bool) Set to ``NO'' by default.  Set it to ``YES'' to enable
                 ipfs(8) saving the filter and NAT state tables during
                 shutdown and reloading them during startup again.  Setting
                 this variable needs setting ipfilter_enable or ipnat_enable
                 to ``YES'' too.  See ipfilter_enable for a detailed
                 discussion.  Note that if kern_securelevel is set to 3,
                 ipfs_enable cannot be used because the raised securelevel
                 will prevent ipfs(8) from saving the state tables at shutdown
                 time.

     ipfs_program
                 (str) Path to ipfs(8) (default /sbin/ipfs).

     ipfs_flags  (str) Empty by default.  This variable contains flags passed
                 to the ipfs(8) program.

     pf_enable   (bool) Set to ``NO'' by default.  Setting this to ``YES''
                 enables pf(4) packet filtering.

                 Typical usage will require putting

                       pf_enable="YES"

                 into /etc/rc.conf and editing /etc/pf.conf appropriately.
                 Adding

                       device pf

                 builds support for pf(4) into the kernel, otherwise the
                 kernel module will be loaded.

     pf_rules    (str) Path to pf(4) ruleset configuration file (default
                 /etc/pf.conf).

     pf_program  (str) Path to pfctl(8) (default /sbin/pfctl).

     pf_flags    (str) If pf_enable is set to ``YES'', these flags are passed
                 to the pfctl(8) program when loading the ruleset.

     pflog_enable
                 (bool) Set to ``NO'' by default.  Setting this to ``YES''
                 enables pflogd(8) which logs packets from the pf(4) packet
                 filter.

     pflog_logfile
                 (str) If pflog_enable is set to ``YES'' this controls where
                 pflogd(8) stores the logfile (default /var/log/pflog).  Check
                 /etc/newsyslog.conf to adjust logfile rotation for this.

     pflog_program
                 (str) Path to pflogd(8) (default /sbin/pflogd).

     pflog_flags
                 (str) Empty by default.  This variable contains additional
                 flags passed to the pflogd(8) program.

     ftpproxy_enable
                 (bool) Set to ``NO'' by default.  Setting this to ``YES''
                 enables ftp-proxy(8) which supports the pf(4) packet filter
                 in translating ftp connections.

     ftpproxy_flags
                 (str) Empty by default.  This variable contains additional
                 flags passed to the ftp-proxy(8) program.

     pfsync_enable
                 (bool) Set to ``NO'' by default.  Setting this to ``YES''
                 enables exposing pf(4) state changes to other hosts over the
                 network by means of pfsync(4).  The pfsync_syncdev variable
                 must also be set then.

     pfsync_syncdev
                 (str) Empty by default.  This variable specifies the name of
                 the network interface pfsync(4) should operate through.  It
                 must be set accordingly if pfsync_enable is set to ``YES''.

     pfsync_syncpeer
                 (str) Empty by default.  This variable is optional.  By
                 default, state change messages are sent out on the
                 synchronisation interface using IP multicast packets.  The
                 protocol is IP protocol 240, PFSYNC, and the multicast group
                 used is 224.0.0.240.  When a peer address is specified using
                 the pfsync_syncpeer option, the peer address is used as a
                 destination for the pfsync traffic, and the traffic can then
                 be protected using ipsec(4).  See the pfsync(4) manpage for
                 more details about using ipsec(4) with pfsync(4) interfaces.

     pfsync_ifconfig
                 (str) Empty by default.  This variable can contain additional
                 options to be passed to the ifconfig(8) command used to set
                 up pfsync(4).

     tcp_extensions
                 (bool) Set to ``YES'' by default.  Setting this to ``NO''
                 disables certain TCP options as described by RFC 1323.
                 Setting this to ``NO'' might help remedy such problems with
                 connections as randomly hanging or other weird behavior.
                 Some network devices are known to be broken with respect to
                 these options.

     log_in_vain
                 (int) Set to 0 by default.  The sysctl(8) variables,
                 net.inet.tcp.log_in_vain and net.inet.udp.log_in_vain, as
                 described in tcp(4) and udp(4), are set to the given value.

     tcp_keepalive
                 (bool) Set to ``YES'' by default.  Setting to ``NO'' will
                 disable probing idle TCP connections to verify that the peer
                 is still up and reachable.

     tcp_drop_synfin
                 (bool) Set to ``NO'' by default.  Setting to ``YES'' will
                 cause the kernel to ignore TCP frames that have both the SYN
                 and FIN flags set.  This prevents OS fingerprinting, but may
                 break some legitimate applications.

     icmp_drop_redirect
                 (bool) Set to ``NO'' by default.  Setting to ``YES'' will
                 cause the kernel to ignore ICMP REDIRECT packets.  Refer to
                 icmp(4) for more information.

     icmp_log_redirect
                 (bool) Set to ``NO'' by default.  Setting to ``YES'' will
                 cause the kernel to log ICMP REDIRECT packets.  Note that the
                 log messages are not rate-limited, so this option should only
                 be used for troubleshooting networks.  Refer to icmp(4) for
                 more information.

     icmp_bmcastecho
                 (bool) Set to ``YES'' to respond to broadcast or multicast
                 ICMP ping packets.  Refer to icmp(4) for more information.

     ip_portrange_first
                 (int) If not set to ``NO'', this is the first port in the
                 default portrange.  Refer to ip(4) for more information.

     ip_portrange_last
                 (int) If not set to ``NO'', this is the last port in the
                 default portrange.  Refer to ip(4) for more information.

     network_interfaces
                 (str) Set to the list of network interfaces to configure on
                 this host or ``AUTO'' (the default) for all current
                 interfaces.  Setting the network_interfaces variable to
                 anything other than the default is deprecated.  Interfaces
                 that the administrator wishes to store configuration for, but
                 not start at boot should be configured with the ``NOAUTO''
                 keyword in their ifconfig_<interface> variables as described
                 below.

                 An ifconfig_<interface> variable is also assumed to exist for
                 each value of interface.  When an interface name contains any
                 of the characters ``.-/+'' they are translated to ``_''
                 before lookup.  The variable can contain arguments to
                 ifconfig(8), as well as special case-insensitive keywords
                 described below.  Such keywords are removed before passing
                 the value to ifconfig(8) while the order of the other
                 arguments is preserved.

                 It is possible to add IP alias entries using ifconfig(8)
                 syntax with the address family keyword such as inet.
                 Assuming that the interface in question was ed0, it might
                 look something like this:

                 ifconfig_ed0_alias0="inet 127.0.0.253 netmask 0xffffffff"
                 ifconfig_ed0_alias1="inet 127.0.0.254 netmask 0xffffffff"

                 It also possible to configure multiple IP addresses in
                 Classless Inter-Domain Routing (CIDR) address notation, whose
                 each address component can be a range like inet
                 192.0.2.5-23/24 or inet6 2001:db8:1-f::1/64.  This notation
                 allows address and prefix length part only, not the other
                 address modifiers.

                 In the case of 192.0.2.5-23/24, the address 192.0.2.5 will be
                 configured with the netmask /24 and the addresses 192.0.2.6
                 to 192.0.2.23 with the non-conflicting netmask /32 as
                 explained in the ifconfig(8) alias section.  Note that this
                 special netmask handling is only for inet, not for the other
                 address families such as inet6.

                 With the interface in question being ed0, an example could
                 look like:

                 ifconfig_ed0_alias2="inet 192.0.2.129/27"
                 ifconfig_ed0_alias3="inet 192.0.2.1-5/28"

                 and so on.

                 Note that ipv4_addrs_<interface> variable was supported for
                 IPv4 CIDR address notation.  It is now deprecated because the
                 functionality was integrated into
                 ifconfig_<interface>_alias<n> though ipv4_addrs_<interface>
                 is still supported for backward compatibility.

                 For each ifconfig_<interface>_alias<n> entry with an address
                 family keyword, its contents are passed to ifconfig(8).
                 Execution stops at the first unsuccessful access, so if
                 something like this is present:

                 ifconfig_ed0_alias0="inet 127.0.0.251 netmask 0xffffffff"
                 ifconfig_ed0_alias1="inet 127.0.0.252 netmask 0xffffffff"
                 ifconfig_ed0_alias2="inet 127.0.0.253 netmask 0xffffffff"
                 ifconfig_ed0_alias4="inet 127.0.0.254 netmask 0xffffffff"

                 Then note that alias4 would not be added since the search
                 would stop with the missing ``alias3'' entry.  Due to this
                 difficult to manage behavior, the
                 ifconfig_<interface>_alias<n> form is deprecated.  There is
                 ifconfig_<interface>_aliases variable, which has the same
                 functionality as ifconfig_<interface>_alias<n> and can have
                 all of entries in a variable like the following:

                 ifconfig_ed0_aliases="\
                         inet 127.0.0.251 netmask 0xffffffff \
                         inet 127.0.0.252 netmask 0xffffffff \
                         inet 127.0.0.253 netmask 0xffffffff \
                         inet 127.0.0.254 netmask 0xffffffff"

                 It also supports CIDR notation.

                 If the /etc/start_if.<interface> file is present, it is read
                 and executed by the sh(1) interpreter before configuring the
                 interface as specified in the ifconfig_<interface> and
                 ifconfig_<interface>_alias<n> variables.

                 If a vlans_<interface> variable is set, a vlan(4) interface
                 will be created for each item in the list with the vlandev
                 argument set to interface.  If a vlan interface's name is a
                 number, then that number is used as the vlan tag and the new
                 vlan interface is named interface.tag.  Otherwise, the vlan
                 tag must be specified via a vlan parameter in the
                 create_args_<interface> variable.

                 To create a vlan device named em0.101 on em0 with the vlan
                 tag 101 and the optional the IPv4 address 192.0.2.1/24:

                 vlans_em0="101"
                 ifconfig_em0_101="inet 192.0.2.1/24"

                 To create a vlan device named myvlan on em0 with the vlan tag
                 102:

                 vlans_em0="myvlan"
                 create_args_myvlan="vlan 102"

                 If a wlans_<interface> variable is set, an wlan(4) interface
                 will be created for each item in the list with the wlandev
                 argument set to interface.  Further wlan cloning arguments
                 may be passed to the ifconfig(8) create command by setting
                 the create_args_<interface> variable.  One or more wlan(4)
                 devices must be created for each wireless devices as of
                 FreeBSD 8.0.  Debugging flags for wlan(4) devices as set by
                 wlandebug(8) may be specified with an wlandebug_<interface>
                 variable.  The contents of this variable will be passed
                 directly to wlandebug(8).

                 If the ifconfig_<interface> contains the keyword ``NOAUTO''
                 then the interface will not be configured at boot or by
                 /etc/pccard_ether when network_interfaces is set to ``AUTO''.

                 It is possible to bring up an interface with DHCP by adding
                 ``DHCP'' to the ifconfig_<interface> variable.  For instance,
                 to initialize the ed0 device via DHCP, it is possible to use
                 something like:

                 ifconfig_ed0="DHCP"

                 Also, if you want to configure your wireless interface with
                 wpa_supplicant(8) for use with WPA, EAP/LEAP or WEP, you need
                 to add ``WPA'' to the ifconfig_<interface> variable.

                 Finally, you can add ifconfig(8) options in this variable, in
                 addition to the /etc/start_if.<interface> file.  For
                 instance, to configure an ath(4) wireless device in station
                 mode with an address obtained via DHCP, using WPA
                 authentication and 802.11b mode, it is possible to use
                 something like:

                 wlans_ath0="wlan0"
                 ifconfig_wlan0="DHCP WPA mode 11b"

                 In addition to the ifconfig_<interface> form, a fallback
                 variable ifconfig_DEFAULT may be configured.  It will be used
                 for all interfaces with no ifconfig_<interface> variable.
                 This is intended to replace the no longer supported
                 pccard_ifconfig variable.

                 It is also possible to rename an interface by doing:

                 ifconfig_ed0_name="net0"
                 ifconfig_net0="inet 192.0.2.1 netmask 0xffffff00"

     ipv6_enable
                 (bool) This variable is deprecated.  Use
                 ifconfig_<interface>_ipv6 and ipv6_activate_all_interfaces if
                 necessary.

                 If the variable is ``YES'', ``inet6 accept_rtadv'' is added
                 to all of ifconfig_<interface>_ipv6 and the
                 ipv6_activate_all_interfaces is defined as ``YES''.

     ipv6_prefer
                 (bool) This variable is deprecated.  Use ip6addrctl_policy
                 instead.

                 If the variable is ``YES'', the default address selection
                 policy table set by ip6addrctl(8) will be IPv6-preferred.

                 If the variable is ``NO'', the default address selection
                 policy table set by ip6addrctl(8) will be IPv4-preferred.

     ipv6_activate_all_interfaces
                 (bool) This controls initial configuration on IPv6-capable
                 interfaces with no corresponding ifconfig_<interface>_ipv6
                 variable.  Note that it is not always necessary to set this
                 variable to ``YES'' to use IPv6 functionality on FreeBSD.  In
                 most cases, just configuring ifconfig_<interface>_ipv6
                 variables works.

                 If the variable is ``NO'', all interfaces which do not have a
                 corresponding ifconfig_<interface>_ipv6 variable will be
                 marked as ``IFDISABLED'' at creation.  This means that all of
                 IPv6 functionality on that interface is completely disabled
                 to enforce a security policy.  If the variable is set to
                 ``YES'', the flag will be cleared on all of the interfaces.

                 In most cases, just defining an ifconfig_<interface>_ipv6 for
                 an IPv6-capable interface should be sufficient.  However, if
                 an interface is added dynamically (by some tunneling
                 protocols such as PPP, for example), it is often difficult to
                 define the variable in advance.  In such a case, configuring
                 the ``IFDISABLED'' flag can be disabled by setting this
                 variable to ``YES''.

                 For more details of the ``IFDISABLED'' flag and keywords
                 ``inet6 ifdisabled'', see ifconfig(8).

                 Default is ``NO''.

     ipv6_privacy
                 (bool) If the variable is ``YES'' privacy addresses will be
                 generated for each IPv6 interface as described in RFC 4941.

     ipv6_network_interfaces
                 (str) This is the IPv6 equivalent of network_interfaces.
                 Normally manual configuration of this variable is not needed.

     ipv6_cpe_wanif
                 (str) If the variable is set to an interface name, the
                 ifconfig(8) options ``inet6 -no_radr accept_rtadv'' will be
                 added to the specified interface automatically before
                 evaluating ifconfig_<interface>_ipv6, and two sysctl(8)
                 variables net.inet6.ip6.rfc6204w3 and net.inet6.ip6.no_radr
                 will be set to 1.

                 This means the specified interface will accept ICMPv6 Router
                 Advertisement messages on that link and add the discovered
                 routers into the Default Router List.  While the other
                 interfaces can still accept RA messages if the ``inet6
                 accept_rtadv'' option is specified, adding routes into the
                 Default Router List will be disabled by ``inet6 no_radr''
                 option by default.  See ifconfig(8) for more details.

                 Note that ICMPv6 Router Advertisement messages will be
                 accepted even when net.inet6.ip6.forwarding is 1 (packet
                 forwarding is enabled) when net.inet6.ip6.rfc6204w3 is set to
                 1.

                 Default is ``NO''.

     ifconfig_<interface>_ipv6
                 (str) IPv6 functionality on an interface should be configured
                 by ifconfig_<interface>_ipv6, instead of setting ifconfig
                 parameters in ifconfig_<interface>.  If this variable is
                 empty, all of IPv6 configurations on the specified interface
                 by other variables such as ipv6_prefix_<interface> will be
                 ignored.

                 Aliases should be set by ifconfig_<interface>_alias<n> with
                 ``inet6'' keyword.  For example:

                 ifconfig_ed0_ipv6="inet6 2001:db8:1::1 prefixlen 64"
                 ifconfig_ed0_alias0="inet6 2001:db8:2::1 prefixlen 64"

                 Interfaces that have an ``inet6 accept_rtadv'' keyword in
                 ifconfig_<interface>_ipv6 setting will be automatically
                 configured by SLAAC (StateLess Address AutoConfiguration)
                 described in RFC 4862.

                 Note that a link-local address will be automatically
                 configured in addition to the configured global-scope
                 addresses because the IPv6 specifications require it on each
                 link.  The address is calculated from the MAC address by
                 using an algorithm defined in RFC 4862, Section 5.3.

                 If only a link-local address is needed on the interface, the
                 following configuration can be used:

                 ifconfig_ed0_ipv6="inet6 auto_linklocal"

                 A link-local address can also be configured manually.  This
                 is useful for the default router address of an IPv6 router so
                 that it does not change when the network interface card is
                 replaced.  For example:

                 ifconfig_ed0_ipv6="inet6 fe80::1 prefixlen 64"

     ipv6_prefix_<interface>
                 (str) If one or more prefixes are defined in
                 ipv6_prefix_<interface> addresses based on each prefix and
                 the EUI-64 interface index will be configured on that
                 interface.  Note that this variable will be ignored when
                 ifconfig_<interface>_ipv6 is empty.

                 For example, the following configuration

                 ipv6_prefix_ed0="2001:db8:1:0 2001:db8:2:0"

                 is equivalent to the following:

                 ifconfig_ed0_alias0="inet6 2001:db8:1:: eui64 prefixlen 64"
                 ifconfig_ed0_alias1="inet6 2001:db8:1:: prefixlen 64 anycast"
                 ifconfig_ed0_alias2="inet6 2001:db8:2:: eui64 prefixlen 64"
                 ifconfig_ed0_alias3="inet6 2001:db8:2:: prefixlen 64 anycast"

                 These Subnet-Router anycast addresses will be added only when
                 ipv6_gateway_enable is YES.

     ipv6_default_interface
                 (str) If not set to ``NO'', this is the default output
                 interface for scoped addresses.  This works only with
                 ipv6_gateway_enable="NO".

     ip6addrctl_enable
                 (bool) This variable is to enable configuring default address
                 selection policy table (RFC 3484).  The table can be
                 specified in another variable ip6addrctl_policy.  For
                 ip6addrctl_policy the following keywords can be specified:
                 ``ipv4_prefer'', ``ipv6_prefer'', or ``AUTO''.

                 If ``ipv4_prefer'' or ``ipv6_prefer'' is specified,
                 ip6addrctl(8) installs a pre-defined policy table described
                 in Section 2.1 (IPv6-preferred) or 10.3 (IPv4-preferred) of
                 RFC 3484.

                 If ``AUTO'' is specified, it attempts to read a file
                 /etc/ip6addrctl.conf first.  If this file is found,
                 ip6addrctl(8) reads and installs it.  If not found, a policy
                 is automatically set according to
                 ipv6_activate_all_interfaces variable; if the variable is set
                 to ``YES'' the IPv6-preferred one is used.  Otherwise
                 IPv4-preferred.

                 The default value of ip6addrctl_enable and ip6addrctl_policy
                 are ``YES'' and ``AUTO'', respectively.

     cloned_interfaces
                 (str) Set to the list of clonable network interfaces to
                 create on this host.  Further cloning arguments may be passed
                 to the ifconfig(8) create command for each interface by
                 setting the create_args_<interface> variable.  Entries in
                 cloned_interfaces are automatically appended to
                 network_interfaces for configuration.

     fec_interfaces
                 (str) Set to the list of ng_fec(4) Fast EtherChannel
                 interfaces to configure on this host.  A
                 fecconfig_<interface> variable is assumed to exist for each
                 value of interface.  The value of this variable is used to
                 configure link aggregated interfaces according to the syntax
                 of the NGM_FEC_ADD_IFACE to ngctl(8) msg.  Additionally, this
                 option ensures that each listed interface is created via the
                 mkpeer command to ngctl(8) before attempting to configure it.
                 For example:

                 fec_interfaces="fec0"
                 fecconfig_fec0="em0 em1"
                 ifconfig_fec0="DHCP"

     gif_interfaces
                 (str) Set to the list of gif(4) tunnel interfaces to
                 configure on this host.  A gifconfig_<interface> variable is
                 assumed to exist for each value of interface.  The value of
                 this variable is used to configure the link layer of the
                 tunnel according to the syntax of the tunnel option to
                 ifconfig(8).  Additionally, this option ensures that each
                 listed interface is created via the create option to
                 ifconfig(8) before attempting to configure it.

     sppp_interfaces
                 (str) Set to the list of sppp(4) interfaces to configure on
                 this host.  A spppconfig_<interface> variable is assumed to
                 exist for each value of interface.  Each interface should
                 also be configured by a general ifconfig_<interface> setting.
                 Refer to spppcontrol(8) for more information about available
                 options.

     ppp_enable  (bool) If set to ``YES'', run the ppp(8) daemon.

     ppp_profile
                 (str) The name of the profile to use from /etc/ppp/ppp.conf.
                 Also used for per-profile overrides of ppp_mode and ppp_nat,
                 and ppp_<profile>_unit.  When the profile name contains any
                 of the characters ``.-/+'' they are translated to ``_'' for
                 the proposes of the override variable names.

     ppp_mode    (str) Mode in which to run the ppp(8) daemon.

     ppp_<profile>_mode
                 (str) Overrides the global ppp_mode for profile.  Accepted
                 modes are ``auto'', ``ddial'', ``direct'' and ``dedicated''.
                 See the manual for a full description.

     ppp_nat     (bool) If set to ``YES'', enables network address
                 translation.  Used in conjunction with gateway_enable allows
                 hosts on private network addresses access to the Internet
                 using this host as a network address translating router.

     ppp_<profile>_nat
                 (str) Overrides the global ppp_nat for profile.

     ppp_<profile>_unit
                 (int) Set the unit number to be used for this profile.  See
                 the manual description of -unitN for details.

     ppp_user    (str) The name of the user under which ppp(8) should be
                 started.  By default, ppp(8) is started as ``root''.

     rc_conf_files
                 (str) This option is used to specify a list of files that
                 will override the settings in /etc/defaults/rc.conf.  The
                 files will be read in the order in which they are specified
                 and should include the full path to the file.  By default,
                 the files specified are /etc/rc.conf and /etc/rc.conf.local

     zfs_enable  (bool) If set to ``YES'', /etc/rc.d/zfs will attempt to
                 automatically mount ZFS file systems and initialize ZFS
                 volumes (ZVOLs).

     gptboot_enable
                 (bool) If set to ``YES'', /etc/rc.d/gptboot will log if the
                 system successfully (or not) booted from a GPT partition,
                 which had the bootonce attribute set using gpart(8) utility.

     gbde_autoattach_all
                 (bool) If set to ``YES'', /etc/rc.d/gbde will attempt to
                 automatically initialize your .bde devices in /etc/fstab.

     gbde_devices
                 (str) List the devices that the script should try to attach,
                 or ``AUTO''.

     gbde_lockdir
                 (str) The directory where the gbde(4) lockfiles are located.
                 The default lockfile directory is /etc.

                 The lockfile for each individual gbde(4) device can be
                 overridden by setting the variable gbde_lock_<device>, where
                 device is the encrypted device without the ``/dev/'' and
                 ``.bde'' parts.

     gbde_attach_attempts
                 (int) Number of times to attempt attaching to a gbde(4)
                 device, i.e., how many times the user is asked for the pass-
                 phrase.  Default is 3.

     geli_devices
                 (str) List of devices to automatically attach on boot.  Note
                 that .eli devices from /etc/fstab are automatically appended
                 to this list.

     geli_tries  (int) Number of times user is asked for the pass-phrase.  If
                 empty, it will be taken from kern.geom.eli.tries sysctl
                 variable.

     geli_default_flags
                 (str) Default flags to use by geli(8) when configuring disk
                 encryption.  Flags can be configured for every device
                 separately by defining geli_<device>_flags variable.

     geli_autodetach
                 (str) Specifies if GELI devices should be marked for detach
                 on last close after file systems are mounted.  Default is
                 ``YES''.  This can be changed for every device separately by
                 defining geli_<device>_autodetach variable.

     geli_swap_flags
                 Options passed to the geli(8) utility when encrypted GEOM
                 providers for swap partitions are created.  The default is
                 ``-e aes -l 256 -s 4096 -d''.

     root_rw_mount
                 (bool) Set to ``YES'' by default.  After the file systems are
                 checked at boot time, the root file system is remounted as
                 read-write if this is set to ``YES''.  Diskless systems that
                 mount their root file system from a read-only remote NFS
                 share should set this to ``NO'' in their rc.conf.

     fsck_y_enable
                 (bool) If set to ``YES'', fsck(8) will be run with the -y
                 flag if the initial preen of the file systems fails.

     background_fsck
                 (bool) If set to ``YES'', the system will attempt to run
                 fsck(8) in the background where possible.

     background_fsck_delay
                 (int) The amount of time in seconds to sleep before starting
                 a background fsck(8).  It defaults to sixty seconds to allow
                 large applications such as the X server to start before disk
                 I/O bandwidth is monopolized by fsck(8).  If set to a
                 negative number, the background file system check will be
                 delayed indefinitely to allow the administrator to run it at
                 a more convenient time.  For example it may be run from
                 cron(8) by adding a line like

                       0 4 * * * root /etc/rc.d/bgfsck forcestart

                 to /etc/crontab.

     netfs_types
                 (str) List of file system types that are network-based.  This
                 list should generally not be modified by end users.  Use
                 extra_netfs_types instead.

     extra_netfs_types
                 (str) If set to something other than ``NO'' (the default),
                 this variable extends the list of file system types for which
                 automatic mounting at startup by rc(8) should be delayed
                 until the network is initialized.  It should contain a
                 whitespace-separated list of network file system descriptor
                 pairs, each consisting of a file system type as passed to
                 mount(8) and a human-readable, one-word description, joined
                 with a colon (`:').  Extending the default list in this way
                 is only necessary when third party file system types are
                 used.

     syslogd_enable
                 (bool) If set to ``YES'', run the syslogd(8) daemon.

     syslogd_program
                 (str) Path to syslogd(8) (default /usr/sbin/syslogd).

     syslogd_flags
                 (str) If syslogd_enable is set to ``YES'', these are the
                 flags to pass to syslogd(8).

     inetd_enable
                 (bool) If set to ``YES'', run the inetd(8) daemon.

     inetd_program
                 (str) Path to inetd(8) (default /usr/sbin/inetd).

     inetd_flags
                 (str) If inetd_enable is set to ``YES'', these are the flags
                 to pass to inetd(8).

     hastd_enable
                 (bool) If set to ``YES'', run the hastd(8) daemon.

     hastd_program
                 (str) Path to hastd(8) (default /sbin/hastd).

     hastd_flags
                 (str) If hastd_enable is set to ``YES'', these are the flags
                 to pass to hastd(8).

     named_enable
                 (bool) If set to ``YES'', run the named(8) daemon.

     named_program
                 (str) Path to named(8) (default /usr/sbin/named).

     named_conf  (str) Path to named(8) configuration file, (default
                 /etc/namedb/named.conf).

     named_flags
                 (str) If named_enable is set to ``YES'', these are the flags
                 to pass to named(8).

     named_uid   (str) The user that the named(8) process should be run as.

     named_chrootdir
                 (str) The root directory for a name server run in a chroot(8)
                 environment (default /var/named).  If left empty named(8)
                 will not be run in a chroot(8) environment.

     named_chroot_autoupdate
                 (bool) Set to ``NO'' to disable automatic update of the
                 chroot(8) environment.

     named_symlink_enable
                 (bool) Set to ``NO'' to disable symlinking of daemon's PID
                 file into the chroot(8) environment.

     named_wait  (bool) Set to have /etc/rc.d/named loop until working name
                 service is established.

     named_wait_host
                 (str) Name of host to lookup for the named_wait option.
                 (Default localhost)

     named_auto_forward
                 (bool) Set to enable automatic creation of a forwarder
                 configuration file derived from /etc/resolv.conf.

     named_auto_forward_only
                 (bool) Set to change the default forwarder configuration from
                 ``forward first'' to ``forward only''.

     kerberos5_server_enable
                 (bool) Set to ``YES'' to start a Kerberos 5 authentication
                 server at boot time.

     kerberos5_server
                 (str) If kerberos5_server_enable is set to ``YES'' this is
                 the path to Kerberos 5 Authentication Server.

     kerberos5_server_flags
                 (str) Empty by default.  This variable contains additional
                 flags to be passed to the Kerberos 5 authentication server.

     kadmind5_server_enable
                 (bool) Set to ``YES'' to start kadmind(8), the Kerberos 5
                 Administration Daemon; set to ``NO'' on a slave server.

     kadmind5_server
                 (str) If kadmind5_server_enable is set to ``YES'' this is the
                 path to Kerberos 5 Administration Daemon.

     kpasswdd_server_enable
                 (bool) Set to ``YES'' to start kpasswdd(8), the Kerberos 5
                 Password-Changing Daemon; set to ``NO'' on a slave server.

     kpasswdd_server
                 (str) If kpasswdd_server_enable is set to ``YES'' this is the
                 path to Kerberos 5 Password-Changing Daemon.

     rwhod_enable
                 (bool) If set to ``YES'', run the rwhod(8) daemon at boot
                 time.

     rwhod_flags
                 (str) If rwhod_enable is set to ``YES'', these are the flags
                 to pass to it.

     amd_enable  (bool) If set to ``YES'', run the amd(8) daemon at boot time.

     amd_flags   (str) If amd_enable is set to ``YES'', these are the flags to
                 pass to it.  See the amd(8) manpage for more information.

     amd_map_program
                 (str) If set, the specified program is run to get the list of
                 amd(8) maps.  For example, if the amd(8) maps are stored in
                 NIS, one can set this to run ypcat(1) to get a list of amd(8)
                 maps from the amd.master NIS map.

     update_motd
                 (bool) If set to ``YES'', /etc/motd will be updated at boot
                 time to reflect the kernel release being run.  If set to
                 ``NO'', /etc/motd will not be updated.

     nfs_client_enable
                 (bool) If set to ``YES'', run the NFS client daemons at boot
                 time.

     nfs_access_cache
                 (int) If nfs_client_enable is set to ``YES'', this can be set
                 to ``0'' to disable NFS ACCESS RPC caching, or to the number
                 of seconds for which NFS ACCESS results should be cached.  A
                 value of 2-10 seconds will substantially reduce network
                 traffic for many NFS operations.

     nfs_server_enable
                 (bool) If set to ``YES'', run the NFS server daemons at boot
                 time.

     nfs_server_flags
                 (str) If nfs_server_enable is set to ``YES'', these are the
                 flags to pass to the nfsd(8) daemon.

     nfsv4_server_enable
                 (bool) If nfs_server_enable is set to ``YES'' and
                 nfsv4_server_enable are set to ``YES'', enable the server for
                 NFSv4 as well as NFSv2 and NFSv3.

     nfsuserd_enable
                 (bool) If nfsuserd_enable is set to ``YES'', run the nfsuserd
                 daemon, which is needed for NFSv4 in order to map between
                 user/group names vs uid/gid numbers.  If nfsv4_server_enable
                 is set to ``YES'', this will be forced enabled.

     nfsuserd_flags
                 (str) If nfsuserd_enable is set to ``YES'', these are the
                 flags to pass to the nfsuserd(8) daemon.

     nfscbd_enable
                 (bool) If nfscbd_enable is set to ``YES'', run the nfscbd
                 daemon, which enables callbacks/delegations for the NFSv4
                 client.

     nfscbd_flags
                 (str) If nfscbd_enable is set to ``YES'', these are the flags
                 to pass to the nfscbd(8) daemon.

     oldnfs_server_enable
                 (bool) If oldnfs_server_enable is set to ``YES'', force the
                 NFS server daemons to run the old NFS server code that does
                 not support NFSv4.

     mountd_enable
                 (bool) If set to ``YES'', and no nfs_server_enable is set,
                 start mountd(8), but not nfsd(8) daemon.  It is commonly
                 needed to run CFS without real NFS used.

     mountd_flags
                 (str) If mountd_enable is set to ``YES'', these are the flags
                 to pass to the mountd(8) daemon.

     weak_mountd_authentication
                 (bool) If set to ``YES'', allow services like PCNFSD to make
                 non-privileged mount requests.

     nfs_reserved_port_only
                 (bool) If set to ``YES'', provide NFS services only on a
                 secure port.

     nfs_bufpackets
                 (int) If set to a number, indicates the number of packets
                 worth of socket buffer space to reserve on an NFS client.
                 The kernel default is typically 4.  Using a higher number may
                 be useful on gigabit networks to improve performance.  The
                 minimum value is 2 and the maximum is 64.

     rpc_lockd_enable
                 (bool) If set to ``YES'' and also an NFS server or client,
                 run rpc.lockd(8) at boot time.

     rpc_lockd_flags
                 (str) If rpc_lockd_enable is set to ``YES'', these are the
                 flags to pass to the rpc.lockd(8) daemon.

     rpc_statd_enable
                 (bool) If set to ``YES'' and also an NFS server or client,
                 run rpc.statd(8) at boot time.

     rpc_statd_flags
                 (str) If rpc_statd_enable is set to ``YES'', these are the
                 flags to pass to the rpc.statd(8) daemon.

     rpcbind_program
                 (str) Path to rpcbind(8) (default /usr/sbin/rpcbind).

     rpcbind_enable
                 (bool) If set to ``YES'', run the rpcbind(8) service at boot
                 time.

     rpcbind_flags
                 (str) If rpcbind_enable is set to ``YES'', these are the
                 flags to pass to the rpcbind(8) daemon.

     keyserv_enable
                 (bool) If set to ``YES'', run the keyserv(8) daemon on boot
                 for running Secure RPC.

     keyserv_flags
                 (str) If keyserv_enable is set to ``YES'', these are the
                 flags to pass to keyserv(8) daemon.

     pppoed_enable
                 (bool) If set to ``YES'', run the pppoed(8) daemon at boot
                 time to provide PPP over Ethernet services.

     pppoed_<provider>
                 (str) pppoed(8) listens to requests to this provider and
                 ultimately runs ppp(8) with a system argument of the same
                 name.

     pppoed_flags
                 (str) Additional flags to pass to pppoed(8).

     pppoed_interface
                 (str) The network interface to run pppoed(8) on.  This is
                 mandatory when pppoed_enable is set to ``YES''.

     timed_enable
                 (bool) If set to ``YES'', run the timed(8) service at boot
                 time.  This command is intended for networks of machines
                 where a consistent ``network time'' for all hosts must be
                 established.  This is often useful in large NFS environments
                 where time stamps on files are expected to be consistent
                 network-wide.

     timed_flags
                 (str) If timed_enable is set to ``YES'', these are the flags
                 to pass to the timed(8) service.

     ntpdate_enable
                 (bool) If set to ``YES'', run ntpdate(8) at system startup.
                 This command is intended to synchronize the system clock only
                 once from some standard reference.  An option to set this up
                 initially (from a list of known servers) is also provided by
                 the sysinstall(8) program when the system is first installed.

     ntpdate_config
                 (str) Configuration file for ntpdate(8).  Default
                 /etc/ntp.conf.

     ntpdate_hosts
                 (str) A whitespace-separated list of NTP servers to
                 synchronize with at startup.  The default is to use the
                 servers listed in ntpdate_config, if that file exists.

     ntpdate_program
                 (str) Path to ntpdate(8) (default /usr/sbin/ntpdate).

     ntpdate_flags
                 (str) If ntpdate_enable is set to ``YES'', these are the
                 flags to pass to the ntpdate(8) command (typically a
                 hostname).

     ntpd_enable
                 (bool) If set to ``YES'', run the ntpd(8) command at boot
                 time.

     ntpd_program
                 (str) Path to ntpd(8) (default /usr/sbin/ntpd).

     ntpd_config
                 (str) Path to ntpd(8) configuration file.  Default
                 /etc/ntp.conf.

     ntpd_flags  (str) If ntpd_enable is set to ``YES'', these are the flags
                 to pass to the ntpd(8) daemon.

     ntpd_sync_on_start
                 (bool) If set to ``YES'', ntpd(8) is run with the -g flag,
                 which syncs the system's clock on startup.  See ntpd(8) for
                 more information regarding the -g option.  This is a
                 preferred alternative to using ntpdate(8) or specifying the
                 ntpdate_enable variable.

     nis_client_enable
                 (bool) If set to ``YES'', run the ypbind(8) service at system
                 boot time.

     nis_client_flags
                 (str) If nis_client_enable is set to ``YES'', these are the
                 flags to pass to the ypbind(8) service.

     nis_ypset_enable
                 (bool) If set to ``YES'', run the ypset(8) daemon at system
                 boot time.

     nis_ypset_flags
                 (str) If nis_ypset_enable is set to ``YES'', these are the
                 flags to pass to the ypset(8) daemon.

     nis_server_enable
                 (bool) If set to ``YES'', run the ypserv(8) daemon at system
                 boot time.

     nis_server_flags
                 (str) If nis_server_enable is set to ``YES'', these are the
                 flags to pass to the ypserv(8) daemon.

     nis_ypxfrd_enable
                 (bool) If set to ``YES'', run the rpc.ypxfrd(8) daemon at
                 system boot time.

     nis_ypxfrd_flags
                 (str) If nis_ypxfrd_enable is set to ``YES'', these are the
                 flags to pass to the rpc.ypxfrd(8) daemon.

     nis_yppasswdd_enable
                 (bool) If set to ``YES'', run the rpc.yppasswdd(8) daemon at
                 system boot time.

     nis_yppasswdd_flags
                 (str) If nis_yppasswdd_enable is set to ``YES'', these are
                 the flags to pass to the rpc.yppasswdd(8) daemon.

     rpc_ypupdated_enable
                 (bool) If set to ``YES'', run the rpc.ypupdated daemon at
                 system boot time.

     bsnmpd_enable
                 (bool) If set to ``YES'', run the bsnmpd(1) daemon at system
                 boot time.  Be sure to understand the security implications
                 of running SNMP daemon on your host.

     bsnmpd_flags
                 (str) If bsnmpd_enable is set to ``YES'', these are the flags
                 to pass to the bsnmpd(1) daemon.

     defaultrouter
                 (str) If not set to ``NO'', create a default route to this
                 host name or IP address (use an IP address if this router is
                 also required to get to the name server!).

     ipv6_defaultrouter
                 (str) The IPv6 equivalent of defaultrouter.

     static_arp_pairs
                 (str) Set to the list of static ARP pairs that are to be
                 added at system boot time.  For each whitespace separated
                 element in the value, a static_arp_<element> variable is
                 assumed to exist whose contents will later be passed to a
                 ``arp -S'' operation.  For example

                 static_arp_pairs="gw"
                 static_arp_gw="192.168.1.1 00:01:02:03:04:05"

     static_ndp_pairs
                 (str) Set to the list of static NDP pairs that are to be
                 added at system boot time.  For each whitespace separated
                 element in the value, a static_ndp_<element> variable is
                 assumed to exist whose contents will later be passed to a
                 ``ndp -s'' operation.  For example

                 static_ndp_pairs="gw"
                 static_ndp_gw="2001:db8:3::1 00:01:02:03:04:05"

     static_routes
                 (str) Set to the list of static routes that are to be added
                 at system boot time.  If not set to ``NO'' then for each
                 whitespace separated element in the value, a route_<element>
                 variable is assumed to exist whose contents will later be
                 passed to a ``route add'' operation.  For example:

                 static_routes="ext mcast:gif0 gif0local:gif0"
                 route_ext="-net 10.0.0.0/24 -gateway 192.168.0.1"
                 route_mcast="-net 224.0.0.0/4 -iface gif0"
                 route_gif0local="-host 169.254.1.1 -iface lo0"

                 When an element is in the form of name:ifname, the route is
                 specific to the interface ifname.

     ipv6_static_routes
                 (str) The IPv6 equivalent of static_routes.  If not set to
                 ``NO'' then for each whitespace separated element in the
                 value, a ipv6_route_<element> variable is assumed to exist
                 whose contents will later be passed to a ``route add -inet6''
                 operation.

     natm_static_routes
                 (str) The natmip(4) equivalent of static_routes.  If not
                 empty then for each whitespace separated element in the
                 value, a route_<element> variable is assumed to exist whose
                 contents will later be passed to a ``atmconfig natm add''
                 operation.

     gateway_enable
                 (bool) If set to ``YES'', configure host to act as an IP
                 router, e.g. to forward packets between interfaces.

     ipv6_gateway_enable
                 (bool) The IPv6 equivalent of gateway_enable.

     routed_enable
                 (bool) If set to ``YES'', run a routing daemon of some sort,
                 based on the settings of routed_program and routed_flags.

     route6d_enable
                 (bool) The IPv6 equivalent of routed_enable.  If set to
                 ``YES'', run a routing daemon of some sort, based on the
                 settings of route6d_program and route6d_flags.

     routed_program
                 (str) If routed_enable is set to ``YES'', this is the name of
                 the routing daemon to use.

     route6d_program
                 (str) The IPv6 equivalent of routed_program.

     routed_flags
                 (str) If routed_enable is set to ``YES'', these are the flags
                 to pass to the routing daemon.

     route6d_flags
                 (str) The IPv6 equivalent of routed_flags.

     mrouted_enable
                 (bool) If set to ``YES'', run the multicast routing daemon,
                 mrouted(8).

     mroute6d_enable
                 (bool) The IPv6 equivalent of mrouted_enable.  If set to
                 ``YES'', run the IPv6 multicast routing daemon.

                 Note that multicast routing daemons are no longer included in
                 the FreeBSD base system, however, both mrouted(8) and
                 pim6dd(8) may be installed from the FreeBSD Ports Collection.

     mrouted_flags
                 (str) If mrouted_enable is set to ``YES'', these are the
                 flags to pass to the mrouted(8) daemon.

     mroute6d_flags
                 (str) The IPv6 equivalent of mrouted_flags.  If
                 mroute6d_enable is set to ``YES'', these are the flags passed
                 to the IPv6 multicast routing daemon.

     mroute6d_program
                 (str) If mroute6d_enable is set to ``YES'', this is the path
                 to the IPv6 multicast routing daemon.

     rtadvd_enable
                 (bool) If set to ``YES'', run the rtadvd(8) daemon at boot
                 time.  The rtadvd(8) utility sends ICMPv6 Router
                 Advertisement messages to the interfaces specified in
                 rtadvd_interfaces.  This should only be enabled with great
                 care.  You may want to fine-tune rtadvd.conf(5).

     rtadvd_interfaces
                 (str) If rtadvd_enable is set to ``YES'' this is the list of
                 interfaces to use.

     ipxgateway_enable
                 (bool) If set to ``YES'', enable the routing of IPX traffic.

     ipxrouted_enable
                 (bool) If set to ``YES'', run the IPXrouted(8) daemon at
                 system boot time.

     ipxrouted_flags
                 (str) If ipxrouted_enable is set to ``YES'', these are the
                 flags to pass to the IPXrouted(8) daemon.

     arpproxy_all
                 (bool) If set to ``YES'', enable global proxy ARP.

     forward_sourceroute
                 (bool) If set to ``YES'' and gateway_enable is also set to
                 ``YES'', source-routed packets are forwarded.

     accept_sourceroute
                 (bool) If set to ``YES'', the system will accept source-
                 routed packets directed at it.

     rarpd_enable
                 (bool) If set to ``YES'', run the rarpd(8) daemon at system
                 boot time.

     rarpd_flags
                 (str) If rarpd_enable is set to ``YES'', these are the flags
                 to pass to the rarpd(8) daemon.

     bootparamd_enable
                 (bool) If set to ``YES'', run the bootparamd(8) daemon at
                 system boot time.

     bootparamd_flags
                 (str) If bootparamd_enable is set to ``YES'', these are the
                 flags to pass to the bootparamd(8) daemon.

     stf_interface_ipv4addr
                 (str) If not set to ``NO'', this is the local IPv4 address
                 for 6to4 (IPv6 over IPv4 tunneling interface).  Specify this
                 entry to enable the 6to4 interface.

     stf_interface_ipv4plen
                 (int) Prefix length for 6to4 IPv4 addresses, to limit peer
                 address range.  An effective value is 0-31.

     stf_interface_ipv6_ifid
                 (str) IPv6 interface ID for stf(4).  This can be set to
                 ``AUTO''.

     stf_interface_ipv6_slaid
                 (str) IPv6 Site Level Aggregator for stf(4).

     ipv6_faith_prefix
                 (str) If not set to ``NO'', this is the faith prefix to
                 enable a FAITH IPv6-to-IPv4 TCP translator.  You also need
                 faithd(8) setup.

     ipv6_ipv4mapping
                 (bool) If set to ``YES'' this enables IPv4 mapped IPv6
                 address communication (like ::ffff:a.b.c.d).

     rtsold_enable
                 (bool) Set to ``YES'' to enable the rtsold(8) daemon to send
                 ICMPv6 Router Solicitation messages.

     rtsold_flags
                 (str) If rtsold_enable is set to ``YES'', these are the flags
                 to pass to rtsold(8).

     rtsol_flags
                 (str) For interfaces configured with the ``inet6
                 accept_rtadv'' keyword, these are the flags to pass to
                 rtsol(8).

                 Note that rtsold_enable is mutually exclusive to rtsol_flags;
                 rtsold_enable takes precedence.

     atm_enable  (bool) Set to ``YES'' to enable the configuration of ATM
                 interfaces at system boot time.  For all of the ATM variables
                 described below, please refer to the atm(8) manual page for
                 further details on the available command parameters.  Also
                 refer to the files in /usr/share/examples/atm for more
                 detailed configuration information.

     atm_load    (str) This is a list of physical ATM interface drivers to
                 load.  Typical values are ``hfa_pci'' and/or ``hea_pci''.

     atm_netif_<intf>
                 (str) For the ATM physical interface intf, this variable
                 defines the name prefix and count for the ATM network
                 interfaces to be created.  The value will be passed as the
                 parameters of an ``atm set netif intf'' command.

     atm_sigmgr_<intf>
                 (str) For the ATM physical interface intf, this variable
                 defines the ATM signalling manager to be used.  The value
                 will be passed as the parameters of an ``atm attach intf''
                 command.

     atm_prefix_<intf>
                 (str) For the ATM physical interface intf, this variable
                 defines the NSAP prefix for interfaces using a UNI signalling
                 manager.  If set to ``ILMI'', the prefix will automatically
                 be set via the ilmid(8) daemon.  Otherwise, the value will be
                 passed as the parameters of an ``atm set prefix intf''
                 command.

     atm_macaddr_<intf>
                 (str) For the ATM physical interface intf, this variable
                 defines the MAC address for interfaces using a UNI signalling
                 manager.  If set to ``NO'', the hardware MAC address
                 contained in the ATM interface card will be used.  Otherwise,
                 the value will be passed as the parameters of an ``atm set
                 mac intf'' command.

     atm_arpserver_<netif>
                 (str) For the ATM network interface netif, this variable
                 defines the ATM address for a host which is to provide ATMARP
                 service.  This variable is only applicable to interfaces
                 using a UNI signalling manager.  If set to ``local'', this
                 host will become an ATMARP server.  The value will be passed
                 as the parameters of an ``atm set arpserver netif'' command.

     atm_scsparp_<netif>
                 (bool) If set to ``YES'', SCSP/ATMARP service for the network
                 interface netif will be initiated using the scspd(8) and
                 atmarpd(8) daemons.  This variable is only applicable if
                 atm_arpserver_<netif> is set to ``local''.

     atm_pvcs    (str) Set to the list of ATM PVCs to be added at system boot
                 time.  For each whitespace separated element in the value, an
                 atm_pvc_<element> variable is assumed to exist.  The value of
                 each of these variables will be passed as the parameters of
                 an ``atm add pvc'' command.

     atm_arps    (str) Set to the list of permanent ATM ARP entries to be
                 added at system boot time.  For each whitespace separated
                 element in the value, an atm_arp_<element> variable is
                 assumed to exist.  The value of each of these variables will
                 be passed as the parameters of an ``atm add arp'' command.

     natm_interfaces
                 (str) Set to the list of natm(4) interfaces that will also be
                 used for HARP through harp(4).  If this list is not empty all
                 interfaces in the list will be brought up with ifconfig(8)
                 and harp(4) will be loaded.  For this to work the interface
                 drivers must be either compiled into the kernel or must
                 reside on the root partition.

     keybell     (str) The keyboard bell sound.  Set to ``normal'',
                 ``visual'', ``off'', or ``NO'' if the default behavior is
                 desired.  For details, refer to the kbdcontrol(1) manpage.

     keyboard    (str) If set to a non-null string, the virtual console's
                 keyboard input is set to this device.

     keymap      (str) If set to ``NO'', no keymap is installed, otherwise the
                 value is used to install the keymap file in
                 /usr/share/syscons/keymaps/<value>.kbd.

     keyrate     (str) The keyboard repeat speed.  Set to ``slow'',
                 ``normal'', ``fast'', or ``NO'' if the default behavior is
                 desired.

     keychange   (str) If not set to ``NO'', attempt to program the function
                 keys with the value.  The value should be a single string of
                 the form: ``funkey_number new_value [funkey_number new_value
                 ...]''.

     cursor      (str) Can be set to the value of ``normal'', ``blink'',
                 ``destructive'', or ``NO'' to set the cursor behavior
                 explicitly or choose the default behavior.

     scrnmap     (str) If set to ``NO'', no screen map is installed, otherwise
                 the value is used to install the screen map file in
                 /usr/share/syscons/scrnmaps/<value>.

     font8x16    (str) If set to ``NO'', the default 8x16 font value is used
                 for screen size requests, otherwise the value in
                 /usr/share/syscons/fonts/<value> is used.

     font8x14    (str) If set to ``NO'', the default 8x14 font value is used
                 for screen size requests, otherwise the value in
                 /usr/share/syscons/fonts/<value> is used.

     font8x8     (str) If set to ``NO'', the default 8x8 font value is used
                 for screen size requests, otherwise the value in
                 /usr/share/syscons/fonts/<value> is used.

     blanktime   (int) If set to ``NO'', the default screen blanking interval
                 is used, otherwise it is set to value seconds.

     saver       (str) If not set to ``NO'', this is the actual screen saver
                 to use (blank, snake, daemon, etc).

     moused_nondefault_enable
                 (str) If set to ``NO'', the mouse device specified on the
                 command line is not automatically treated as enabled by the
                 /etc/rc.d/moused script.  Having this variable set to ``YES''
                 allows a usb(4) mouse, for example, to be enabled as soon as
                 it is plugged in.

     moused_enable
                 (str) If set to ``YES'', the moused(8) daemon is started for
                 doing cut/paste selection on the console.

     moused_type
                 (str) This is the protocol type of the mouse connected to
                 this host.  This variable must be set if moused_enable is set
                 to ``YES''.  The moused(8) daemon is able to detect the
                 appropriate mouse type automatically in many cases.  Set this
                 variable to ``auto'' to let the daemon detect it, or select
                 one from the following list if the automatic detection fails.

                 If the mouse is attached to the PS/2 mouse port, choose
                 ``auto'' or ``ps/2'', regardless of the brand and model of
                 the mouse.  Likewise, if the mouse is attached to the bus
                 mouse port, choose ``auto'' or ``busmouse''.  All other
                 protocols are for serial mice and will not work with the PS/2
                 and bus mice.  If this is a USB mouse, ``auto'' is the only
                 protocol type which will work.

                 microsoft           Microsoft mouse (serial)
                 intellimouse        Microsoft IntelliMouse (serial)
                 mousesystems        Mouse systems Corp. mouse (serial)
                 mmseries            MM Series mouse (serial)
                 logitech            Logitech mouse (serial)
                 busmouse            A bus mouse
                 mouseman            Logitech MouseMan and TrackMan (serial)
                 glidepoint          ALPS GlidePoint (serial)
                 thinkingmouse       Kensington ThinkingMouse (serial)
                 ps/2                PS/2 mouse
                 mmhittab            MM HitTablet (serial)
                 x10mouseremote      X10 MouseRemote (serial)
                 versapad            Interlink VersaPad (serial)

                 Even if the mouse is not in the above list, it may be
                 compatible with one in the list.  Refer to the manual page
                 for moused(8) for compatibility information.

                 It should also be noted that while this is enabled, any other
                 client of the mouse (such as an X server) should access the
                 mouse through the virtual mouse device, /dev/sysmouse, and
                 configure it as a ``sysmouse'' type mouse, since all mouse
                 data is converted to this single canonical format when using
                 moused(8).  If the client program does not support the
                 ``sysmouse'' type, specify the ``mousesystems'' type.  It is
                 the second preferred type.

     moused_port
                 (str) If moused_enable is set to ``YES'', this is the actual
                 port the mouse is on.  It might be /dev/cuad0 for a COM1
                 serial mouse, /dev/psm0 for a PS/2 mouse or /dev/mse0 for a
                 bus mouse, for example.

     moused_flags
                 (str) If moused_flags is set, its value is used as an
                 additional set of flags to pass to the moused(8) daemon.

     moused_XXX_flags
                 When moused_nondefault_enable is enabled, and a moused(8)
                 daemon is started for a non-default port, the
                 moused_XXX_flags set of options has precedence over and
                 replaces the default moused_flags (where XXX is the name of
                 the non-default port, i.e., ums0).  By setting
                 moused_XXX_flags it is possible to set up a different set of
                 default flags for each moused(8) instance.  For example, you
                 can use ``-3'' for the default moused_flags to make your
                 laptop's touchpad more comfortable to use, but an empty set
                 of options for moused_ums0_flags when your usb(4) mouse has
                 three or more buttons.

     mousechar_start
                 (int) If set to ``NO'', the default mouse cursor character
                 range 0xd0-0xd3 is used, otherwise the range start is set to
                 value character, see vidcontrol(1).  Use if the default range
                 is occupied in the language code table.

     allscreens_flags
                 (str) If set, vidcontrol(1) is run with these options for
                 each of the virtual terminals (/dev/ttyv*).  For example,
                 ``-m on'' will enable the mouse pointer on all virtual
                 terminals if moused_enable is set to ``YES''.

     allscreens_kbdflags
                 (str) If set, kbdcontrol(1) is run with these options for
                 each of the virtual terminals (/dev/ttyv*).  For example,
                 ``-h 200'' will set the syscons(4) scrollback (history)
                 buffer to 200 lines.

     cron_enable
                 (bool) If set to ``YES'', run the cron(8) daemon at system
                 boot time.

     cron_program
                 (str) Path to cron(8) (default /usr/sbin/cron).

     cron_flags  (str) If cron_enable is set to ``YES'', these are the flags
                 to pass to cron(8).

     cron_dst    (bool) If set to ``YES'', enable the special handling of
                 transitions to and from the Daylight Saving Time in cron(8)
                 (equivalent to using the flag -s).

     lpd_program
                 (str) Path to lpd(8) (default /usr/sbin/lpd).

     lpd_enable  (bool) If set to ``YES'', run the lpd(8) daemon at system
                 boot time.

     lpd_flags   (str) If lpd_enable is set to ``YES'', these are the flags to
                 pass to the lpd(8) daemon.

     chkprintcap_enable
                 (bool) If set to ``YES'', run the chkprintcap(8) command
                 before starting the lpd(8) daemon.

     chkprintcap_flags
                 (str) If lpd_enable and chkprintcap_enable are set to
                 ``YES'', these are the flags to pass to the chkprintcap(8)
                 program.  The default is ``-d'', which causes missing
                 directories to be created.

     mta_start_script
                 (str) This variable specifies the full path to the script to
                 run to start a mail transfer agent.  The default is
                 /etc/rc.sendmail.  The sendmail_* variables which
                 /etc/rc.sendmail uses are documented in the rc.sendmail(8)
                 manual page.

     dumpdev     (str) Indicates the device (usually a swap partition) to
                 which a crash dump should be written in the event of a system
                 crash.  If the value of this variable is ``AUTO'', the first
                 suitable swap device listed in /etc/fstab will be used as
                 dump device.  Otherwise, the value of this variable is passed
                 as the argument to dumpon(8).  To disable crash dumps, set
                 this variable to ``NO''.

     dumpdir     (str) When the system reboots after a crash and a crash dump
                 is found on the device specified by the dumpdev variable,
                 savecore(8) will save that crash dump and a copy of the
                 kernel to the directory specified by the dumpdir variable.
                 The default value is /var/crash.  Set to ``NO'' to not run
                 savecore(8) at boot time when dumpdir is set.

     savecore_flags
                 (str) If crash dumps are enabled, these are the flags to pass
                 to the savecore(8) utility.

     quota_enable
                 (bool) Set to ``YES'' to turn on user and group disk quotas
                 on system startup via the quotaon(8) command for all file
                 systems marked as having quotas enabled in /etc/fstab.  The
                 kernel must be built with options QUOTA for disk quotas to
                 function.

     check_quotas
                 (bool) Set to ``YES'' to enable user and group disk quota
                 checking via the quotacheck(8) command.

     quotacheck_flags
                 (str) If quota_enable is set to ``YES'', and check_quotas is
                 set to ``YES'', these are the flags to pass to the
                 quotacheck(8) utility.  The default is ``-a'', which checks
                 quotas for all file systems with quotas enabled in
                 /etc/fstab.

     quotaon_flags
                 (str) If quota_enable is set to ``YES'', these are the flags
                 to pass to the quotaon(8) utility.  The default is ``-a'',
                 which enables quotas for all file systems with quotas enabled
                 in /etc/fstab.

     quotaoff_flags
                 (str) If quota_enable is set to ``YES'', these are the flags
                 to pass to the quotaoff(8) utility when shutting down the
                 quota system.  The default is ``-a'', which disables quotas
                 for all file systems with quotas enabled in /etc/fstab.

     accounting_enable
                 (bool) Set to ``YES'' to enable system accounting through the
                 accton(8) facility.

     ibcs2_enable
                 (bool) Set to ``YES'' to enable iBCS2 (SCO) binary emulation
                 at system initial boot time.

     ibcs2_loaders
                 (str) If not set to ``NO'' and if ibcs2_enable is set to
                 ``YES'', this specifies a list of additional iBCS2 loaders to
                 enable.

     firstboot_sentinel
                 (str) This variable specifies the full path to a ``first
                 boot'' sentinel file.  If a file exists with this path, rc.d
                 scripts with the ``firstboot'' keyword will be run on startup
                 and the sentinel file will be deleted after the boot process
                 completes.  The sentinel file must be located on a writable
                 file system which is mounted no later than early_late_divider
                 to function properly.  The default is /firstboot.

     linux_enable
                 (bool) Set to ``YES'' to enable Linux/ELF binary emulation at
                 system initial boot time.

     svr4_enable
                 (bool) If set to ``YES'', enable SysVR4 emulation at boot
                 time.

     sysvipc_enable
                 (bool) If set to ``YES'', load System V IPC primitives at
                 boot time.

     clear_tmp_enable
                 (bool) Set to ``YES'' to have /tmp cleaned at startup.

     clear_tmp_X
                 (bool) Set to ``NO'' to disable removing of X11 lock files,
                 and the removal and (secure) recreation of the various socket
                 directories for X11 related programs.

     ldconfig_paths
                 (str) Set to the list of shared library paths to use with
                 ldconfig(8).  NOTE: /usr/lib will always be added first, so
                 it need not appear in this list.

     ldconfig32_paths
                 (str) Set to the list of 32-bit compatibility shared library
                 paths to use with ldconfig(8).

     ldconfig_paths_aout
                 (str) Set to the list of shared library paths to use with
                 ldconfig(8) legacy a.out(5) support.

     ldconfig_insecure
                 (bool) The ldconfig(8) utility normally refuses to use
                 directories which are writable by anyone except root.  Set
                 this variable to ``YES'' to disable that security check
                 during system startup.

     ldconfig_local_dirs
                 (str) Set to the list of local ldconfig(8) directories.  The
                 names of all files in the directories listed will be passed
                 as arguments to ldconfig(8).

     ldconfig_local32_dirs
                 (str) Set to the list of local 32-bit compatibility
                 ldconfig(8) directories.  The names of all files in the
                 directories listed will be passed as arguments to ``ldconfig
                 -32''.

     kern_securelevel_enable
                 (bool) Set to ``YES'' to set the kernel security level at
                 system startup.

     kern_securelevel
                 (int) The kernel security level to set at startup.  The
                 allowed range of value ranges from -1 (the compile time
                 default) to 3 (the most secure).  See security(7) for the
                 list of possible security levels and their effect on system
                 operation.

     sshd_program
                 (str) Path to the SSH server program (/usr/sbin/sshd is the
                 default).

     sshd_enable
                 (bool) Set to ``YES'' to start sshd(8) at system boot time.

     sshd_flags  (str) If sshd_enable is set to ``YES'', these are the flags
                 to pass to the sshd(8) daemon.

     ftpd_program
                 (str) Path to the FTP server program (/usr/libexec/ftpd is
                 the default).

     ftpd_enable
                 (bool) Set to ``YES'' to start ftpd(8) as a stand-alone
                 daemon at system boot time.

     ftpd_flags  (str) If ftpd_enable is set to ``YES'', these are the
                 additional flags to pass to the ftpd(8) daemon.

     watchdogd_enable
                 (bool) If set to ``YES'', start the watchdogd(8) daemon at
                 boot time.  This requires that the kernel have been compiled
                 with a watchdog(4) compatible device.

     watchdogd_flags
                 (str) If watchdogd_enable is set to ``YES'', these are the
                 flags passed to the watchdogd(8) daemon.

     devfs_rulesets
                 (str) List of files containing sets of rules for devfs(8).

     devfs_system_ruleset
                 (str) Rule name(s) to apply to the system /dev itself.

     devfs_set_rulesets
                 (str) Pairs of already-mounted dev directories and rulesets
                 that should be applied to them.  For example:
                 /mount/dev=ruleset_name

     devfs_load_rulesets
                 (bool) If set, always load the default rulesets listed in
                 devfs_rulesets.

     performance_cx_lowest
                 (str) CPU idle state to use while on AC power.  The string
                 ``LOW'' indicates that acpi(4) should use the lowest power
                 state available while ``HIGH'' indicates that the lowest
                 latency state (less power savings) should be used.

     performance_cpu_freq
                 (str) CPU clock frequency to use while on AC power.  The
                 string ``LOW'' indicates that cpufreq(4) should use the
                 lowest frequency available while ``HIGH'' indicates that the
                 highest frequency (less power savings) should be used.

     economy_cx_lowest
                 (str) CPU idle state to use when off AC power.  The string
                 ``LOW'' indicates that acpi(4) should use the lowest power
                 state available while ``HIGH'' indicates that the lowest
                 latency state (less power savings) should be used.

     economy_cpu_freq
                 (str) CPU clock frequency to use when off AC power.  The
                 string ``LOW'' indicates that cpufreq(4) should use the
                 lowest frequency available while ``HIGH'' indicates that the
                 highest frequency (less power savings) should be used.

     jail_enable
                 (bool) If set to ``NO'', any configured jails will not be
                 started.

     jail_parallel_start
                 (bool) If set to ``YES'' all configured jails will be started
                 in the background (= in parallel).

     jail_list   (str) A space separated list of names for jails.  This is
                 purely a configuration aid to help identify and configure
                 multiple jails.  The names specified in this list will be
                 used to identify settings common to an instance of a jail,
                 and should contain alphanumeric characters only.  The literal
                 jail name of ``0'' (zero) is not allowed.

                 Assuming that the jail in question was named vjail, you would
                 have the following dependent variables:

                 jail_vjail_hostname="jail.example.com"
                 jail_vjail_ip="192.0.2.100"
                 jail_vjail_rootdir="/var/jails/vjail/root"

     jail_flags  (str) Unset by default.  When set, use as default value for
                 jail_<jname>_flags for every jail in jail_list.

     jail_interface
                 (str) Unset by default.  When set, use as default value for
                 jail_<jname>_interface for every jail in jail_list.

     jail_fstab  (str) Unset by default.  When set, use as default value for
                 jail_<jname>_fstab for every jail in jail_list.

     jail_mount_enable
                 (bool) Set to ``NO'' by default.  When set to ``YES'', sets
                 jail_<jname>_mount_enable to ``YES'' by default for every
                 jail in jail_list.

     jail_devfs_ruleset
                 (str) Unset by default.  When set, sets
                 jail_<jname>_devfs_ruleset to given value for every jail in
                 jail_list.

     jail_devfs_enable
                 (bool) Set to ``NO'' by default.  When set to ``YES'', sets
                 jail_<jname>_devfs_enable to ``YES'' by default for every
                 jail in jail_list.

     jail_fdescfs_enable
                 (bool) Set to ``NO'' by default.  When set to ``YES'', sets
                 jail_<jname>_fdescfs_enable to ``YES'' by default for every
                 jail in jail_list.

     jail_procfs_enable
                 (bool) Set to ``NO'' by default.  When set to ``YES'', sets
                 jail_<jname>_fdescfs_enable to ``YES'' by default for every
                 jail in jail_list.

     jail_exec_prestart<N>
                 (str) Unset by default.  When set, use as default value for
                 jail_<jname>_exec_prestart<N> for every jail in jail_list.

     jail_exec_start
                 (str) Unset by default.  When set, use as default value for
                 jail_<jname>_exec_start for every jail in jail_list.

     jail_exec_afterstart<N>
                 (str) Unset by default.  When set, use as default value for
                 jail_<jname>_exec_afterstart<N> for every jail in jail_list.

     jail_exec_poststart<N>
                 (str) Unset by default.  When set, use as default value for
                 jail_<jname>_exec_poststart<N> for every jail in jail_list.

     jail_exec_prestop<N>
                 (str) Unset by default.  When set, use as default value for
                 jail_<jname>_exec_prestop<N> for every jail in jail_list.

     jail_exec_stop
                 Unset by default.  When set, use as default value for
                 jail_<jname>_exec_stop for every jail in jail_list.

     jail_exec_poststop<N>
                 (str) Unset by default.  When set, use as default value for
                 jail_<jname>_exec_poststop<N> for every jail in jail_list.

     jail_<jname>_rootdir
                 (str) Unset by default.  Set to the root directory used by
                 jail jname.

     jail_<jname>_hostname
                 (str) Unset by default.  Set to the fully qualified domain
                 name (FQDN) assigned to jail jname.

     jail_<jname>_parameters
                 (str) Unset by default.  Set extra parameters for jail jname,
                 such as ``allow.chflags'' or ``children.max''.  See jail(8)
                 for a list of available parameters.  Note that the following
                 parameters are already defined by rc.d/jail script out of
                 their corresponding rc.conf variables:

                       path           set from jail_<jname>_rootdir

                       host.hostname  set from jail_<jname>_hostname

                       command        set from jail_<jname>_exec_start

                       ip4.addr       set if jail_<jname>_ip contains IPv4
                                      addresses

                       ip6.addr       set if jail_<jname>_ip6 contains IPv6
                                      addresses

     jail_<jname>_ip
                 (str) Unset by default.  Set to the (primary) IPv4 and/or
                 IPv6 address(es) assigned to the jail.  The argument can be a
                 sole address or a comma separated list of addresses.
                 Additionally each address can be prefixed by the name of an
                 interface followed by a pipe to overwrite
                 jail_<jname>_interface or jail_interface and/or suffixed by a
                 netmask, prefixlen or prefix.  In case no netmask, prefixlen
                 or prefix is given, `/32' will be used for IPv4 and `/128'
                 will be used for an IPv6 address.  If no address is given for
                 the jail then the jail will be started with no networking
                 support.

     jail_<jname>_ip_multi<n>
                 (str) Unset by default.  Set additional IPv4 and/or IPv6
                 address(es) assigned to the jail.  The sequence starts with
                 ``_multi0'' and the numbers have to be strictly ascending.
                 These entries follow the same syntax as their primary
                 jail_<jname>_ip entry.  The order of the entries can be
                 important as the first address for each address family found
                 will be the primary address of the jail.  See ip-addresses
                 option in jail(8) for more details.

     jail_<jname>_flags
                 (str) Set to ``-l -U root'' by default.  These are flags to
                 pass to jail(8).

     jail_<jname>_interface
                 (str) Unset by default.  When set, sets the interface to use
                 when setting IP address alias.  Note that the alias is
                 created at jail startup and removed at jail shutdown.

     jail_<jname>_fib
                 (str) Unset by default.  When set, the jail is started with
                 the specified forwarding table (sometimes referred to as a
                 routing table) via setfib(1).

     jail_<jname>_fstab
                 (str) Set to /etc/fstab.<jname> by default.  This is the file
                 system information file to use for jail jname.

     jail_<jname>_mount_enable
                 (bool) Set to ``NO'' by default.  When set to ``YES'', mount
                 all file systems from jail_<jname>_fstab at jail startup.

     jail_<jname>_devfs_ruleset
                 (str) Unset by default.  When set, defines the device file
                 system ruleset file to use for jail jname.

     jail_<jname>_devfs_enable
                 (bool) Set to ``NO'' by default.  When set to ``YES'', mount
                 the device file system inside jail jname at jail startup.

     jail_<jname>_fdescfs_enable
                 (bool) Set to ``NO'' by default.  When set to ``YES'', mount
                 the file-descriptor file system inside jail jname at jail
                 startup.

     jail_<jname>_procfs_enable
                 (bool) Set to ``NO'' by default.  When set to ``YES'', mount
                 the process file system inside jail jname at jail startup.

     jail_<jname>_exec_prestart<N>
                 (str) Unset by default.  This is the command run as Nth
                 command before jail startup, where N is 0, 1, and so on.  It
                 is run outside the jail.

     jail_<jname>_exec_start
                 (str) Set to ``/bin/sh /etc/rc'' by default.  This is the
                 command executed in a jail at jail startup.

     jail_<jname>_exec_afterstart<N>
                 (str) Unset by default.  This is the command run as Nth
                 command in a jail after jail startup, where N is 1, 2, and so
                 on.

     jail_<jname>_exec_poststart<N>
                 (str) Unset by default.  This is the command run as Nth
                 command after jail startup, where N is 0, 1, and so on.  It
                 is run outside the jail.

     jail_<jname>_exec_prestop<N>
                 (str) Unset by default.  This is the command run as Nth
                 command before jail shutdown, where N is 0, 1, and so on.  It
                 is run outside the jail.

     jail_<jname>_exec_stop
                 (str) Set to ``/bin/sh /etc/rc.shutdown'' by default.  This
                 is the command executed in a jail at jail shutdown.

     jail_<jname>_exec_poststop<N>
                 (str) Unset by default.  This is the command run as Nth
                 command after jail shutdown, where N is 0, 1, and so on.  It
                 is run outside the jail.

     jail_set_hostname_allow
                 (bool) If set to ``NO'', do not allow the root user in a jail
                 to set its hostname.

     jail_socket_unixiproute_only
                 (bool) If set to ``YES'', do not allow any sockets, besides
                 UNIX/IP/route sockets, to be used within a jail.

     jail_sysvipc_allow
                 (bool) If set to ``YES'', allow applications within a jail to
                 use System V IPC.

     harvest_interrupt
                 (bool) Set to ``YES'' to use hardware interrupts as an
                 entropy source.  Refer to random(4) for more information.

     harvest_ethernet
                 (bool) Set to ``YES'' to use LAN traffic as an entropy
                 source.  Refer to random(4) for more information.

     harvest_p_to_p
                 (bool) Set to ``YES'' to use serial line traffic as an
                 entropy source.  Refer to random(4) for more information.

     entropy_dir
                 (str) Set to ``NO'' to disable caching entropy via cron(8).
                 Otherwise set to the directory used to store entropy files
                 in.

     entropy_file
                 (str) Set to ``NO'' to disable caching entropy through
                 reboots.  Otherwise set to the filename used to store cached
                 entropy through reboots.  This file should be located on the
                 root file system to seed the random(4) device as early as
                 possible in the boot process.

     entropy_save_sz
                 (int) Size of the entropy cache files saved by save-entropy
                 periodically.

     entropy_save_num
                 (int) Number of entropy cache files to save by save-entropy
                 periodically.

     ipsec_enable
                 (bool) Set to ``YES'' to run setkey(8) on ipsec_file at boot
                 time.

     ipsec_file  (str) Configuration file for setkey(8).

     dmesg_enable
                 (bool) Set to ``YES'' to save dmesg(8) to /var/run/dmesg.boot
                 on boot.

     rcshutdown_timeout
                 (int) If set, start a watchdog timer in the background which
                 will terminate rc.shutdown if shutdown(8) has not completed
                 within the specified time (in seconds).  Notice that in
                 addition to this soft timeout, init(8) also applies a hard
                 timeout for the execution of rc.shutdown.  This is configured
                 via sysctl(8) variable kern.init_shutdown_timeout and
                 defaults to 120 seconds.  Setting the value of
                 rcshutdown_timeout to more than 120 seconds will have no
                 effect until the sysctl(8) variable
                 kern.init_shutdown_timeout is also increased.

     virecover_enable
                 (bool) Set to ``NO'' to prevent the system from trying to
                 recover pre-maturely terminated vi(1) sessions.

     ugidfw_enable
                 (bool) Set to ``YES'' to load the mac_bsdextended(4) module
                 upon system initialization and load a default ruleset file.

     bsdextended_script
                 (str) The default mac_bsdextended(4) ruleset file to load.
                 The default value of this variable is /etc/rc.bsdextended.

     newsyslog_enable
                 (bool) If set to ``YES'', run newsyslog(8) command at
                 startup.

     newsyslog_flags
                 (str) If newsyslog_enable is set to ``YES'', these are the
                 flags to pass to the newsyslog(8) program.  The default is
                 ``-CN'', which causes log files flagged with a C to be
                 created.

     mdconfig_md<X>
                 (str) Arguments to mdconfig(8) for md(4) device X.  At
                 minimum a -t type must be specified and either a -s size for
                 malloc or swap backed md(4) devices or a -f file for vnode
                 backed md(4) devices.  Note that mdconfig_md<X> variables are
                 evaluated until one variable is unset or null.

     mdconfig_md<X>_newfs
                 (str) Optional arguments passed to newfs(8) to initialize
                 md(4) device X.

     mdconfig_md<X>_owner
                 (str) An ownership specification passed to chown(8) after the
                 specified md(4) device X has been mounted.  Both the md(4)
                 device and the mount point will be changed.

     mdconfig_md<X>_perms
                 (str) A mode string passed to chmod(1) after the specified
                 md(4) device X has been mounted.  Both the md(4) device and
                 the mount point will be changed.

     mdconfig_md<X>_files
                 (str) Files to be copied to the mount point of the md(4)
                 device X after it has been mounted.

     mdconfig_md<X>_cmd
                 (str) Command to execute after the specified md(4) device X
                 has been mounted.  Note that the command is passed to eval
                 and that both _dev and _mp variables can be used to reference
                 respectively the md(4) device and the mount point.  Assuming
                 that the md(4) device is md0, one could set the following:

                 mdconfig_md0_cmd="tar xfzC /var/file.tgz \${_mp}"

     autobridge_interfaces
                 (str) Set to the list of bridge interfaces that will have
                 newly arriving interfaces checked against to be automatically
                 added.  If not set to ``NO'' then for each whitespace
                 separated element in the value, a autobridge_<element>
                 variable is assumed to exist which has a whitespace separated
                 list of interface names to match, these names can use
                 wildcards.  For example:

                 autobridge_interfaces="bridge0"
                 autobridge_bridge0="tap* dc0 vlan[345]"

     mixer_enable
                 (bool) If set to ``YES'', enable support for sound mixer.

     hcsecd_enable
                 (bool) If set to ``YES'', enable Bluetooth security daemon.

     hcsecd_config
                 (str) Configuration file for hcsecd(8).  Default
                 /etc/bluetooth/hcsecd.conf.

     sdpd_enable
                 (bool) If set to ``YES'', enable Bluetooth Service Discovery
                 Protocol daemon.

     sdpd_control
                 (str) Path to sdpd(8) control socket.  Default /var/run/sdp.

     sdpd_groupname
                 (str) Sets sdpd(8) group to run as after it initializes.
                 Default ``nobody''.

     sdpd_username
                 (str) Sets sdpd(8) user to run as after it initializes.
                 Default ``nobody''.

     bthidd_enable
                 (bool) If set to ``YES'', enable Bluetooth Human Interface
                 Device daemon.

     bthidd_config
                 (str) Configuration file for bthidd(8).  Default
                 /etc/bluetooth/bthidd.conf.

     bthidd_hids
                 (str) Path to a file, where bthidd(8) will store information
                 about known HID devices.  Default /var/db/bthidd.hids.

     rfcomm_pppd_server_enable
                 (bool) If set to ``YES'', enable Bluetooth RFCOMM PPP wrapper
                 daemon.

     rfcomm_pppd_server_profile
                 (str) The name of the profile to use from /etc/ppp/ppp.conf.
                 Multiple profiles can be specified here.  Also used to
                 specify per-profile overrides.  When the profile name
                 contains any of the characters ``.-/+'' they are translated
                 to ``_'' for the proposes of the override variable names.

     rfcomm_pppd_server_<profile>_bdaddr
                 (str) Overrides local address to listen on.  By default
                 rfcomm_pppd(8) will listen on ``ANY'' address.  The address
                 can be specified as BD_ADDR or name.

     rfcomm_pppd_server_<profile>_channel
                 (str) Overrides local RFCOMM channel to listen on.  By
                 default rfcomm_pppd(8) will listen on RFCOMM channel 1.  Must
                 set properly if multiple profiles used in the same time.

     rfcomm_pppd_server_<profile>_register_sp
                 (bool) Tells rfcomm_pppd(8) if it should register Serial Port
                 service on the specified RFCOMM channel.  Default ``NO''.

     rfcomm_pppd_server_<profile>_register_dun
                 (bool) Tells rfcomm_pppd(8) if it should register Dial-Up
                 Networking service on the specified RFCOMM channel.  Default
                 ``NO''.

     ubthidhci_enable
                 (bool) If set to ``YES'', change the USB Bluetooth controller
                 from HID mode to HCI mode.  You also need to specify the
                 location of USB Bluetooth controller with the
                 ubthidhci_busnum and ubthidhci_addr variables.

     ubthidhci_busnum
                 Bus number where the USB Bluetooth controller is located.
                 Check the output of usbconfig(8) on your system to find this
                 information.

     ubthidhci_addr
                 Bus address of the USB Bluetooth controller.  Check the
                 output of usbconfig(8) on your system to find this
                 information.

     netwait_enable
                 (bool) If set to ``YES'', delays the start of network-reliant
                 services until netwait_if is up and ICMP packets to a
                 destination defined in netwait_ip are flowing.  Link state is
                 examined first, followed by ``pinging'' an IP address to
                 verify network usability.  If no destination can be reached
                 or timeouts are exceeded, network services are started anyway
                 with no guarantee that the network is usable.  Use of this
                 variable requires both netwait_ip and netwait_if to be set.

     netwait_ip  (str) Empty by default.  This variable contains a space-
                 delimited list of IP addresses to ping(8).  DNS hostnames
                 should not be used as resolution is not guaranteed to be
                 functional at this point.  If multiple IP addresses are
                 specified, each will be tried until one is successful or the
                 list is exhausted.

     netwait_timeout
                 (int) Indicates the total number of seconds to perform a
                 ``ping'' against each IP address in netwait_ip, at a rate of
                 one ping per second.  If any of the pings are successful,
                 full network connectivity is considered reliable.  The
                 default is 60.

     netwait_if  (str) Empty by default.  Defines the name of the network
                 interface on which watch for link.  ifconfig(8) is used to
                 monitor the interface, looking for ``status: no carrier''.
                 Once gone, the link is considered up.  This can be a vlan(4)
                 interface if desired.

     netwait_if_timeout
                 (int) Defines the total number of seconds to wait for link to
                 become usable, polled at a 1-second interval.  The default is
                 30.

FILES
     /etc/defaults/rc.conf
     /etc/rc.conf
     /etc/rc.conf.local

SEE ALSO
     catman(1), chmod(1), gdb(1), info(1), kbdcontrol(1), makewhatis(1),
     sh(1), vi(1), vidcontrol(1), bridge(4), dummynet(4), ip(4), ipf(4),
     ipfw(4), ipnat(4), kld(4), pf(4), pflog(4), pfsync(4), tcp(4), udp(4),
     exports(5), fstab(5), ipf(5), ipnat(5), jail.conf(5), motd(5),
     newsyslog.conf(5), pf.conf(5), security(7), accton(8), amd(8), apm(8),
     atm(8), bthidd(8), chkprintcap(8), chown(8), cron(8), devfs(8),
     dhclient(8), ftpd(8), geli(8), hcsecd(8), ifconfig(8), inetd(8), ipf(8),
     ipfw(8), ipnat(8), jail(8), kldxref(8), lpd(8), mdconfig(8), mdmfs(8),
     mixer(8), mountd(8), moused(8), mrouted(8), named(8), newfs(8),
     newsyslog(8), nfsd(8), ntpd(8), ntpdate(8), pfctl(8), pflogd(8), ping(8),
     powerd(8), quotacheck(8), quotaon(8), rc(8), rc.sendmail(8),
     rfcomm_pppd(8), route(8), routed(8), rpcbind(8), rpc.lockd(8),
     rpc.statd(8), rwhod(8), savecore(8), sdpd(8), sshd(8), swapon(8),
     sysctl(8), syslogd(8), timed(8), usbconfig(8), wlandebug(8), yp(8),
     ypbind(8), ypserv(8), ypset(8)

HISTORY
     The rc.conf file appeared in FreeBSD 2.2.2.

AUTHORS
     Jordan K. Hubbard.

FreeBSD 11.0-PRERELEASE        February 13, 2014       FreeBSD 11.0-PRERELEASE

NAME | DESCRIPTION | FILES | SEE ALSO | HISTORY | AUTHORS

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