source: vendor/current/docs/manpages/winbindd.8@ 427

.\"     Title: winbindd
.\"    Author: [see the "AUTHOR" section]
.\" Generator: DocBook XSL Stylesheets v1.74.0 <http://docbook.sf.net/>
.\"      Date: 03/30/2010
.\"    Manual: System Administration tools
.\"    Source: Samba 3.5
.\"  Language: English
.\"
.TH "WINBINDD" "8" "03/30/2010" "Samba 3\&.5" "System Administration tools"
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.SH "Name"
winbindd \- Name Service Switch daemon for resolving names from NT servers
.SH "Synopsis"
.fam C
.HP \w'\ 'u
\FCwinbindd\F[] [\-D] [\-F] [\-S] [\-i] [\-Y] [\-d\ <debug\ level>] [\-s\ <smb\ config\ file>] [\-n]
.fam
.SH "DESCRIPTION"
.PP
This program is part of the
\fBsamba\fR(7)
suite\&.
.PP
\FCwinbindd\F[]
is a daemon that provides a number of services to the Name Service Switch capability found in most modern C libraries, to arbitrary applications via PAM and
\FCntlm_auth\F[]
and to Samba itself\&.
.PP
Even if winbind is not used for nsswitch, it still provides a service to
\FCsmbd\F[],
\FCntlm_auth\F[]
and the
\FCpam_winbind\&.so\F[]
PAM module, by managing connections to domain controllers\&. In this configuraiton the
\m[blue]\fBidmap uid\fR\m[]
and
\m[blue]\fBidmap gid\fR\m[]
parameters are not required\&. (This is known as `netlogon proxy only mode\'\&.)
.PP
The Name Service Switch allows user and system information to be obtained from different databases services such as NIS or DNS\&. The exact behaviour can be configured through the
\FC/etc/nsswitch\&.conf\F[]
file\&. Users and groups are allocated as they are resolved to a range of user and group ids specified by the administrator of the Samba system\&.
.PP
The service provided by
\FCwinbindd\F[]
is called `winbind\' and can be used to resolve user and group information from a Windows NT server\&. The service can also provide authentication services via an associated PAM module\&.
.PP
The
\FCpam_winbind\F[]
module supports the
\fIauth\fR,
\fIaccount\fR
and
\fIpassword\fR
module\-types\&. It should be noted that the
\fIaccount\fR
module simply performs a getpwnam() to verify that the system can obtain a uid for the user, as the domain controller has already performed access control\&. If the
\FClibnss_winbind\F[]
library has been correctly installed, or an alternate source of names configured, this should always succeed\&.
.PP
The following nsswitch databases are implemented by the winbindd service:
.PP
\-D
.RS 4
If specified, this parameter causes the server to operate as a daemon\&. That is, it detaches itself and runs in the background on the appropriate port\&. This switch is assumed if
\FCwinbindd\F[]
is executed on the command line of a shell\&.
.RE
.PP
hosts
.RS 4
This feature is only available on IRIX\&. User information traditionally stored in the
\FChosts(5)\F[]
file and used by
\FCgethostbyname(3)\F[]
functions\&. Names are resolved through the WINS server or by broadcast\&.
.RE
.PP
passwd
.RS 4
User information traditionally stored in the
\FCpasswd(5)\F[]
file and used by
\FCgetpwent(3)\F[]
functions\&.
.RE
.PP
group
.RS 4
Group information traditionally stored in the
\FCgroup(5)\F[]
file and used by
\FCgetgrent(3)\F[]
functions\&.
.RE
.PP
For example, the following simple configuration in the
\FC/etc/nsswitch\&.conf\F[]
file can be used to initially resolve user and group information from
\FC/etc/passwd \F[]
and
\FC/etc/group\F[]
and then from the Windows NT server\&.
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passwd:         files winbind
group:          files winbind
## only available on IRIX: use winbind to resolve hosts:
# hosts:        files dns winbind
## All other NSS enabled systems should use libnss_wins\&.so like this:
hosts:          files dns wins

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.PP
The following simple configuration in the
\FC/etc/nsswitch\&.conf\F[]
file can be used to initially resolve hostnames from