1PAM_WINBIND(8) 8 PAM_WINBIND(8)
2
6 pam_winbind - PAM module for Winbind
7
9 This tool is part of the samba(7) suite.
10 pam_winbind is a PAM module that can authenticate users against the
12 local domain by talking to the Winbind daemon.
13
15 Edit the PAM system config /etc/pam.d/service and modify it as the
16 following example shows:
17 ...
19 auth required pam_env.so
20 auth sufficient pam_unix2.so
21 +++ auth required pam_winbind.so use_first_pass
22 account requisite pam_unix2.so
23 +++ account required pam_winbind.so use_first_pass
24 +++ password sufficient pam_winbind.so
25 password requisite pam_pwcheck.so cracklib
26 password required pam_unix2.so use_authtok
27 session required pam_unix2.so
28 +++ session required pam_winbind.so
29 ...
30 Make sure that pam_winbind is one of the first modules in the session
33 part. It may retrieve kerberos tickets which are needed by other
34 modules.
35
37 pam_winbind supports several options which can either be set in the PAM
38 configuration files or in the pam_winbind configuration file situated
39 at /etc/security/pam_winbind.conf. Options from the PAM configuration
40 file take precedence to those from the configuration file. See
41 pam_winbind.conf(5) for further details.
42 debug
44 Gives debugging output to syslog.
45 debug_state
47 Gives detailed PAM state debugging output to syslog.
48 require_membership_of=[SID or NAME]
50 If this option is set, pam_winbind will only succeed if the user is
51 a member of the given SID or NAME. A SID can be either a group-SID,
52 an alias-SID or even an user-SID. It is also possible to give a
53 NAME instead of the SID. That name must have the form:
54 MYDOMAIN\\mygroup or MYDOMAIN\\myuser. pam_winbind will, in that
55 case, lookup the SID internally. Note that NAME may not contain any
56 spaces. It is thus recommended to only use SIDs. You can verify the
57 list of SIDs a user is a member of with wbinfo --user-sids=SID.
58 use_first_pass
60 By default, pam_winbind tries to get the authentication token from
61 a previous module. If no token is available it asks the user for
62 the old password. With this option, pam_winbind aborts with an
63 error if no authentication token from a previous module is
64 available.
65 try_first_pass
67 Same as the use_first_pass option (previous item), except that if
68 the primary password is not valid, PAM will prompt for a password.
69 use_authtok
71 Set the new password to the one provided by the previously stacked
72 password module. If this option is not set pam_winbind will ask the
73 user for the new password.
74 krb5_auth
76 pam_winbind can authenticate using Kerberos when winbindd is
77 talking to an Active Directory domain controller. Kerberos
78 authentication must be enabled with this parameter. When Kerberos
79 authentication can not succeed (e.g. due to clock skew), winbindd
80 will fallback to samlogon authentication over MSRPC. When this
81 parameter is used in conjunction with winbind refresh tickets,
82 winbind will keep your Ticket Granting Ticket (TGT) uptodate by
83 refreshing it whenever necessary.
84 krb5_ccache_type=[type]
86 When pam_winbind is configured to try kerberos authentication by
87 enabling the krb5_auth option, it can store the retrieved Ticket
88 Granting Ticket (TGT) in a credential cache. The type of credential
89 cache can be set with this option. Currently the only supported
90 value is: FILE. In that case a credential cache in the form of
91 /tmp/krb5cc_UID will be created, where UID is replaced with the
92 numeric user id. Leave empty to just do kerberos authentication
93 without having a ticket cache after the logon has succeeded.
94 cached_login
96 Winbind allows to logon using cached credentials when winbind
97 offline logon is enabled. To use this feature from the PAM module
98 this option must be set.
99 silent
101 Do not emit any messages.
102 mkhomedir
104 Create homedirectory for a user on-the-fly, option is valid in PAM
105 session block.
106 warn_pwd_expire
108 Defines number of days before pam_winbind starts to warn about
109 passwords that are going to expire. Defaults to 14 days.
110
112 This section describes the data exported in the PAM stack which could
113 be used in other PAM modules.
114 PAM_WINBIND_HOMEDIR
116 This is the Windows Home Directory set in the profile tab in the
117 user settings on the Active Directory Server. This could be a local
118 path or a directory on a share mapped to a drive.
119 PAM_WINBIND_LOGONSCRIPT
121 The path to the logon script which should be executed if a user
122 logs in. This is normally a relative path to the script stored on
123 the server.
124 PAM_WINBIND_LOGONSERVER
126 This exports the Active Directory server we are authenticating
127 against. This can be used as a variable later.
128 PAM_WINBIND_PROFILEPATH
130 This is the profile path set in the profile tab in the user
131 settings. Normally the home directory is synced with this directory
132 on a share.
133
135 pam_winbind.conf(5), wbinfo(1), winbindd(8), smb.conf(5)
136
138 This man page is correct for version 3 of Samba.
139
141 The original Samba software and related utilities were created by
142 Andrew Tridgell. Samba is now developed by the Samba Team as an Open
143 Source project similar to the way the Linux kernel is developed.
144 This manpage was written by Jelmer Vernooij and Guenther Deschner.
146Samba 3.5 08/02/2011 PAM_WINBIND(8)