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INTRO(8)		FreeBSD	System Manager's Manual		      INTRO(8)

NAME
     intro -- introduction to system maintenance and operation commands

DESCRIPTION
     The manual	pages in section 8 contain information related to system oper-
     ation and maintenance.  They describe commands concerning file systems,
     such as edquota(8), fsck(8), mount(8), and	newfs(8).  They	also cover
     commands concerning system	backup/recovery, such as dump(8) and
     restore(8).

     There are pages which document the	running	of the system, such as
     afterboot(8), ifconfig(8),	security(8), and the configuration files
     located in	/etc.  Procedures concerning system failure are	documented in
     crash(8).

     Section 8 pages also describe network services and	daemons.  The rest of
     this page discusses some of the main daemons available on the OpenBSD
     system, and how to	enable/disable them.

     System daemons are	controlled by the script rc(8),	which is in turn con-
     figured by	rc.conf(8).  For example the HTTP daemon httpd(8) is con-
     trolled by	the following line from	rc.conf(8):

	   httpd_flags=NO

     Thus it is	not started by default.	 To enable or disable daemon pro-
     cesses, administrators should edit	the file rc.conf.local(8), which over-
     rides rc.conf(8).	So to enable httpd(8), the following line might	be
     added to /etc/rc.conf.local:

	   httpd_flags=""
     or
	   httpd_flags="-DSSL"

     As	can be seen above, this	method is also used to specify additional
     options.

     Below is a	list of	some of	the daemons available.	For further informa-
     tion, see rc(8) and the individual	pages for the utilities.

   Apache web server (HTTP)
     The apache	web server, httpd(8).  On OpenBSD, it will chroot(2) to	the
     ``ServerRoot'' path.  Detailed information	is available in
     /usr/share/doc/html/httpd/.

     Relevant rc.conf(8) variables: httpd_flags.

   Automounter daemon (amd)
     If	using the amd(8) package, go into the /etc/amd directory and set it up
     by	renaming master.sample to master and editing it	and creating other
     maps as needed.  Alternatively, you can get your maps with	YP.

     Relevant rc.conf(8) variables: amd_flags and amd_master.

   BIND	name server (DNS)
     If	you are	using the BIND name server, check the /etc/resolv.conf file.
     It	may look something like:

	   domain nts.umn.edu
	   nameserver 128.101.101.101
	   nameserver 134.84.84.84
	   search nts.umn.edu. umn.edu.
	   lookup file bind

     If	using a	caching	name server, add the line "nameserver 127.0.0.1"
     first.

     Relevant rc.conf(8) variables: named_flags.

   Clock synchronisation
     In	order to make sure the system clock is correct,	it may be synchronised
     with a number of external sources.	 The utilities available are: ntpd(8)
     and rdate(8).

     Relevant rc.conf(8) variables: ntpd_flags.

   BOOTP/DHCP server
     If	this is	a BOOTP	or DHCP	server,	edit /etc/dhcpd.conf as	needed.	 See
     also diskless(8).

     Relevant rc.conf(8) variables: bootparamd_flags, dhcpd_flags, and
     dhcrelay_flags.

   HP remote boot server
     Edit /etc/rbootd.conf if needed for remote	booting.  If you do not	have
     HP	computers doing	remote booting,	do not enable this.  See also
     diskless(8).

     Relevant rc.conf(8) variables: rbootd_flags.

   Kerberos
     If	you are	going to use kerberos(8) for authentication, and you already
     have a Kerberos master, change directory to /etc/kerberosV	and configure.
     Remember to get a keytab from the master so that the remote commands
     work.

     Relevant rc.conf(8) variables: kdc_flags, kadmind_flags, and
     kpasswdd_flags.

   NFS server
     If	this is	an NFS server, edit /etc/exports.

     Relevant rc.conf(8) variables: mountd_flags and nfsd_flags.

   Relay Daemon
     A relay daemon, relayd(8),	able to	run as a load-balancer,	application
     layer gateway, or transparent proxy.

     Relevant rc.conf(8) variables: relayd_flags.

   Routing Daemons
     Various daemons for managing routing tables are available:	bgpd(8),
     ospfd(8), and ripd(8).

     Relevant rc.conf(8) variables: bgpd_flags,	ospfd_flags, and ripd_flags.

   RPC-based network services
     Several services depend on	the RPC	portmapper, portmap(8),	being running
     for proper	operation.  This includes YP and NFS exports, among other ser-
     vices.

     Relevant rc.conf(8) variables: portmap_flags.

   YP setup
     Check the YP domain name with the domainname(1) command.  If necessary,
     correct it	by editing the /etc/defaultdomain file (see defaultdomain(5)).
     The /etc/netstart script reads this file on boot to determine and set the
     domain name.  You may also	set the	running	system's domain	name with the
     domainname(1) command.

     Relevant rc.conf(8) variables: ypbind_flags.

     After starting YP client services,	perform	the remaining YP activation as
     described in passwd(5) and	group(5).

     In	particular, to enable YP passwd	support, you'll	need to	add the	fol-
     lowing line to /etc/master.passwd:

	   +:*::::::::

     You do this by using vipw(8).

     There are many more YP man	pages available	to help	you.  You can find
     more information by starting with yp(8).

SEE ALSO
     afterboot(8), rc(8), rc.conf(8)

HISTORY
     The intro section manual page appeared in 4.2BSD.

FreeBSD	9.3		       September 2, 2014		   FreeBSD 9.3

NAME | DESCRIPTION | SEE ALSO | HISTORY

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