| 1 | '\" t
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| 2 | .\" Title: pam_winbind
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| 3 | .\" Author: [see the "AUTHOR" section]
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| 4 | .\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
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| 5 | .\" Date: 05/02/2016
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| 6 | .\" Manual: 8
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| 7 | .\" Source: Samba 4.4
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| 8 | .\" Language: English
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| 9 | .\"
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| 10 | .TH "PAM_WINBIND" "8" "05/02/2016" "Samba 4\&.4" "8"
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| 11 | .\" -----------------------------------------------------------------
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| 12 | .\" * Define some portability stuff
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| 13 | .\" -----------------------------------------------------------------
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| 14 | .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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| 15 | .\" http://bugs.debian.org/507673
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| 16 | .\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
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| 17 | .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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| 18 | .ie \n(.g .ds Aq \(aq
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| 19 | .el .ds Aq '
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| 20 | .\" -----------------------------------------------------------------
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| 21 | .\" * set default formatting
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| 22 | .\" -----------------------------------------------------------------
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| 23 | .\" disable hyphenation
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| 24 | .nh
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| 25 | .\" disable justification (adjust text to left margin only)
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| 26 | .ad l
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| 27 | .\" -----------------------------------------------------------------
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| 28 | .\" * MAIN CONTENT STARTS HERE *
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| 29 | .\" -----------------------------------------------------------------
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| 30 | .SH "NAME"
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| 31 | pam_winbind \- PAM module for Winbind
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| 32 | .SH "DESCRIPTION"
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| 33 | .PP
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| 34 | This tool is part of the
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| 35 | \fBsamba\fR(7)
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| 36 | suite\&.
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| 37 | .PP
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| 38 | pam_winbind is a PAM module that can authenticate users against the local domain by talking to the Winbind daemon\&.
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| 39 | .SH "SYNOPSIS"
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| 40 | .PP
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| 41 | Edit the PAM system config /etc/pam\&.d/service and modify it as the following example shows:
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| 42 | .sp
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| 43 | .if n \{\
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| 44 | .RS 4
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| 45 | .\}
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| 46 | .nf
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| 47 | \&.\&.\&.
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| 48 | auth required pam_env\&.so
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| 49 | auth sufficient pam_unix2\&.so
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| 50 | +++ auth required pam_winbind\&.so use_first_pass
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| 51 | account requisite pam_unix2\&.so
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| 52 | +++ account required pam_winbind\&.so use_first_pass
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| 53 | +++ password sufficient pam_winbind\&.so
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| 54 | password requisite pam_pwcheck\&.so cracklib
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| 55 | password required pam_unix2\&.so use_authtok
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| 56 | session required pam_unix2\&.so
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| 57 | +++ session required pam_winbind\&.so
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| 58 | \&.\&.\&.
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| 59 |
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| 60 | .fi
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| 61 | .if n \{\
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| 62 | .RE
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| 63 | .\}
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| 64 | .sp
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| 65 | Make sure that pam_winbind is one of the first modules in the session part\&. It may retrieve kerberos tickets which are needed by other modules\&.
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| 66 | .SH "OPTIONS"
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| 67 | .PP
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| 68 | pam_winbind supports several options which can either be set in the PAM configuration files or in the pam_winbind configuration file situated at
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| 69 | /etc/security/pam_winbind\&.conf\&. Options from the PAM configuration file take precedence to those from the configuration file\&. See
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| 70 | \fBpam_winbind.conf\fR(5)
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| 71 | for further details\&.
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| 72 | .PP
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| 73 | debug
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| 74 | .RS 4
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| 75 | Gives debugging output to syslog\&.
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| 76 | .RE
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| 77 | .PP
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| 78 | debug_state
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| 79 | .RS 4
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| 80 | Gives detailed PAM state debugging output to syslog\&.
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| 81 | .RE
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| 82 | .PP
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| 83 | require_membership_of=[SID or NAME]
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| 84 | .RS 4
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| 85 | 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:
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| 86 | \fIMYDOMAIN\e\emygroup\fR
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| 87 | or
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| 88 | \fIMYDOMAIN\e\emyuser\fR\&. 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
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| 89 | wbinfo \-\-user\-sids=SID\&.
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| 90 | .sp
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| 91 | This option must only be specified on a auth module declaration, as it only operates in conjunction with password authentication\&.
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| 92 | .RE
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| 93 | .PP
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| 94 | use_first_pass
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| 95 | .RS 4
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| 96 | 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\&.
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| 97 | .RE
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| 98 | .PP
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| 99 | try_first_pass
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| 100 | .RS 4
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| 101 | Same as the use_first_pass option (previous item), except that if the primary password is not valid, PAM will prompt for a password\&.
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| 102 | .RE
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| 103 | .PP
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| 104 | use_authtok
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| 105 | .RS 4
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| 106 | Set the new password to the one provided by the previously stacked password module\&. If this option is not set pam_winbind will ask the user for the new password\&.
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| 107 | .RE
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| 108 | .PP
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| 109 | krb5_auth
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| 110 | .RS 4
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| 111 | 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
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| 112 | \fIwinbind refresh tickets\fR, winbind will keep your Ticket Granting Ticket (TGT) uptodate by refreshing it whenever necessary\&.
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| 113 | .RE
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| 114 | .PP
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| 115 | krb5_ccache_type=[type]
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| 116 | .RS 4
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| 117 | When pam_winbind is configured to try kerberos authentication by enabling the
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| 118 | \fIkrb5_auth\fR
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| 119 | option, it can store the retrieved Ticket Granting Ticket (TGT) in a credential cache\&. The type of credential cache can be set with this option\&. Currently the only supported value is:
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| 120 | \fIFILE\fR\&. In that case a credential cache in the form of /tmp/krb5cc_UID will be created, where UID is replaced with the numeric user id\&. Leave empty to just do kerberos authentication without having a ticket cache after the logon has succeeded\&.
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| 121 | .RE
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| 122 | .PP
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| 123 | cached_login
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| 124 | .RS 4
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| 125 | Winbind allows one to logon using cached credentials when
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| 126 | \fIwinbind offline logon\fR
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| 127 | is enabled\&. To use this feature from the PAM module this option must be set\&.
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| 128 | .RE
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| 129 | .PP
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| 130 | silent
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| 131 | .RS 4
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| 132 | Do not emit any messages\&.
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| 133 | .RE
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| 134 | .PP
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| 135 | mkhomedir
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| 136 | .RS 4
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| 137 | Create homedirectory for a user on\-the\-fly, option is valid in PAM session block\&.
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| 138 | .RE
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| 139 | .PP
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| 140 | warn_pwd_expire
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| 141 | .RS 4
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| 142 | Defines number of days before pam_winbind starts to warn about passwords that are going to expire\&. Defaults to 14 days\&.
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| 143 | .RE
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| 144 | .SH "PAM DATA EXPORTS"
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| 145 | .PP
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| 146 | This section describes the data exported in the PAM stack which could be used in other PAM modules\&.
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| 147 | .PP
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| 148 | PAM_WINBIND_HOMEDIR
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| 149 | .RS 4
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| 150 | This is the Windows Home Directory set in the profile tab in the user settings on the Active Directory Server\&. This could be a local path or a directory on a share mapped to a drive\&.
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| 151 | .RE
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| 152 | .PP
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| 153 | PAM_WINBIND_LOGONSCRIPT
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| 154 | .RS 4
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| 155 | The path to the logon script which should be executed if a user logs in\&. This is normally a relative path to the script stored on the server\&.
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| 156 | .RE
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| 157 | .PP
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| 158 | PAM_WINBIND_LOGONSERVER
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| 159 | .RS 4
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| 160 | This exports the Active Directory server we are authenticating against\&. This can be used as a variable later\&.
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| 161 | .RE
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| 162 | .PP
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| 163 | PAM_WINBIND_PROFILEPATH
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| 164 | .RS 4
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| 165 | This is the profile path set in the profile tab in the user settings\&. Normally the home directory is synced with this directory on a share\&.
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| 166 | .RE
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| 167 | .SH "SEE ALSO"
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| 168 | .PP
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| 169 | \fBpam_winbind.conf\fR(5),
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| 170 | \fBwbinfo\fR(1),
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| 171 | \fBwinbindd\fR(8),
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| 172 | \fBsmb.conf\fR(5)
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| 173 | .SH "VERSION"
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| 174 | .PP
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| 175 | This man page is correct for version 3 of Samba\&.
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| 176 | .SH "AUTHOR"
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| 177 | .PP
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| 178 | 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\&.
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| 179 | .PP
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| 180 | This manpage was written by Jelmer Vernooij and Guenther Deschner\&.
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