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       pam_winbind.conf	- Configuration	file of	PAM module for Winbind

       This configuration file is part of the samba(7) suite.

       pam_winbind.conf	is the configuration file for the pam_winbind PAM
       module. See pam_winbind(8) for further details.

       The pam_winbind.conf configuration file is a classic ini-style
       configuration file. There is only one section (global) where various
       options are defined.

       pam_winbind supports several options which can either be	set in the PAM
       configuration files or in the pam_winbind configuration file situated
       at /etc/security/pam_winbind.conf. Options from the PAM configuration
       file take precedence to those from the pam_winbind.conf configuration

       debug = yes|no
	   Gives debugging output to syslog. Defaults to "no".

       debug_state = yes|no
	   Gives detailed PAM state debugging output to	syslog.	Defaults to

       require_membership_of = [SID or NAME]
	   If this option is set, pam_winbind will only	succeed	if the user is
	   a member of the given SID or	NAME. A	SID can	be either a group-SID,
	   an alias-SID	or even	an user-SID. It	is also	possible to give a
	   NAME	instead	of the SID. That name must have	the form:
	   MYDOMAIN\mygroup or MYDOMAIN\myuser.	pam_winbind will, in that
	   case, lookup	the SID	internally. Note that NAME may not contain any
	   spaces. It is thus recommended to only use SIDs. You	can verify the
	   list	of SIDs	a user is a member of with wbinfo --user-sids=SID.
	   This	setting	is empty by default.

	   This	option only operates during password authentication, and will
	   not restrict	access if a password is	not required for any reason
	   (such as SSH	key-based login).

       try_first_pass =	yes|no
	   By default, pam_winbind tries to get	the authentication token from
	   a previous module. If no token is available it asks the user	for
	   the old password. With this option, pam_winbind aborts with an
	   error if no authentication token from a previous module is
	   available. If a primary password is not valid, PAM will prompt for
	   a password. Default to "no".

       krb5_auth = yes|no
	   pam_winbind can authenticate	using Kerberos when winbindd is
	   talking to an Active	Directory domain controller. Kerberos
	   authentication must be enabled with this parameter. When Kerberos
	   authentication can not succeed (e.g.	due to clock skew), winbindd
	   will	fallback to samlogon authentication over MSRPC.	When this
	   parameter is	used in	conjunction with winbind refresh tickets,
	   winbind will	keep your Ticket Granting Ticket (TGT) uptodate	by
	   refreshing it whenever necessary. Defaults to "no".

       krb5_ccache_type	= [type]
	   When	pam_winbind is configured to try kerberos authentication by
	   enabling the	krb5_auth option, it can store the retrieved Ticket
	   Granting Ticket (TGT) in a credential cache.	The type of credential
	   cache can be	controlled with	this option. The supported values are:
	   KCM or KEYRING (when	supported by the system's Kerberos library and
	   operating system), FILE and DIR (when the DIR type is supported by
	   the system's	Kerberos library). In case of FILE a credential	cache
	   in the form of /tmp/krb5cc_UID will be created - in case of DIR you
	   NEED	to specify a directory.	UID is replaced	with the numeric user

	   When	using the KEYRING type,	the supported mechanism	is
	   "KEYRING:persistent:UID", which uses	the Linux kernel keyring to
	   store credentials on	a per-UID basis.

	   When	using th KCM type, the supported mechanism is "KCM:UID", which
	   uses	a Kerberos credential manaager to store	credentials on a
	   per-UID basis simliar to KEYRING. This is the recommended choice on
	   latest Linux	distributions, offering	a Kerberos Credential Manager.
	   If not we suggest to	use KEYRING as those are the most secure and
	   predictable method.

	   It is also possible to define custom	filepaths and use the "%u"
	   pattern in order to substitue the numeric user id. Examples:

	   krb5_ccache_type = DIR:/run/user/%u/krb5cc
	       This will create	a credential cache file	in the specified

	   krb5_ccache_type = FILE:/tmp/krb5cc_%u
	       This will create	a credential cache file.

	   Leave empty to just do kerberos authentication without having a
	   ticket cache	after the logon	has succeeded. This setting is empty
	   by default.

       cached_login = yes|no
	   Winbind allows one to logon using cached credentials	when winbind
	   offline logon is enabled. To	use this feature from the PAM module
	   this	option must be set. Defaults to	"no".

       silent =	yes|no
	   Do not emit any messages. Defaults to "no".

       mkhomedir = yes|no
	   Create homedirectory	for a user on-the-fly, option is valid in PAM
	   session block. Defaults to "no".

       warn_pwd_expire = days
	   Defines number of days before pam_winbind starts to warn about
	   passwords that are going to expire. Defaults	to 14 days.

       pam_winbind(8), wbinfo(1), winbindd(8), smb.conf(5)

       This man	page is	part of	version	4.11.11	of Samba.

       The original Samba software and related utilities were created by
       Andrew Tridgell.	Samba is now developed by the Samba Team as an Open
       Source project similar to the way the Linux kernel is developed.

       This manpage was	written	by Jelmer Vernooij and Guenther	Deschner.

Samba 4.11.11			  07/01/2020		   PAM_WINBIND.CONF(5)


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