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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
<refentry id="idmap_ldap.8">
<refmeta>
<refentrytitle>idmap_ldap</refentrytitle>
<manvolnum>8</manvolnum>
<refmiscinfo class="source">Samba</refmiscinfo>
<refmiscinfo class="manual">System Administration tools</refmiscinfo>
<refmiscinfo class="version">3.2</refmiscinfo>
</refmeta>
<refnamediv>
<refname>idmap_ldap</refname>
<refpurpose>Samba's idmap_ldap Backend for Winbind</refpurpose>
</refnamediv>
<refsynopsisdiv>
<title>DESCRIPTION</title>
<para>The idmap_ldap plugin provides a means for Winbind to
store and retrieve SID/uid/gid mapping tables in an LDAP directory
service. The module implements both the "idmap" and
"idmap alloc" APIs.
</para>
</refsynopsisdiv>
<refsect1>
<title>IDMAP OPTIONS</title>
<variablelist>
<varlistentry>
<term>ldap_base_dn = DN</term>
<listitem><para>
Defines the directory base suffix to use when searching for
SID/uid/gid mapping entries. If not defined, idmap_ldap will default
to using the "ldap idmap suffix" option from smb.conf.
</para></listitem>
</varlistentry>
<varlistentry>
<term>ldap_user_dn = DN</term>
<listitem><para>
Defines the user DN to be used for authentication. If absent an
anonymous bind will be performed.
</para></listitem>
</varlistentry>
<varlistentry>
<term>ldap_url = ldap://server/</term>
<listitem><para>
Specifies the LDAP server to use when searching for existing
SID/uid/gid map entries. If not defined, idmap_ldap will
assume that ldap://localhost/ should be used.
</para></listitem>
</varlistentry>
<varlistentry>
<term>range = low - high</term>
<listitem><para>
Defines the available matching uid and gid range for which the
backend is authoritative. Note that the range commonly matches
the allocation range due to the fact that the same backend will
store and retrieve SID/uid/gid mapping entries. If the parameter
is absent, Winbind fail over to use the "idmap uid" and
"idmap gid" options from smb.conf.
</para></listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1>
<title>IDMAP ALLOC OPTIONS</title>
<variablelist>
<varlistentry>
<term>ldap_base_dn = DN</term>
<listitem><para>
Defines the directory base suffix under which new SID/uid/gid mapping
entries should be stored. If not defined, idmap_ldap will default
to using the "ldap idmap suffix" option from smb.conf.
</para></listitem>
</varlistentry>
<varlistentry>
<term>ldap_user_dn = DN</term>
<listitem><para>
Defines the user DN to be used for authentication. If absent an
anonymous bind will be performed.
</para></listitem>
</varlistentry>
<varlistentry>
<term>ldap_url = ldap://server/</term>
<listitem><para>
Specifies the LDAP server to which modify/add/delete requests should
be sent. If not defined, idmap_ldap will assume that ldap://localhost/
should be used.
</para></listitem>
</varlistentry>
<varlistentry>
<term>range = low - high</term>
<listitem><para>
Defines the available matching uid and gid range from which
winbindd can allocate for users and groups. If the parameter
is absent, Winbind fail over to use the "idmap uid"
and "idmap gid" options from smb.conf.
</para></listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1>
<title>EXAMPLES</title>
<para>
The follow sets of a LDAP configuration which uses a slave server
running on localhost for fast fetching SID/gid/uid mappings, it
implies correct configuration of referrals.
The idmap alloc backend is pointed directly to the master to skip
the referral (and consequent reconnection to the master) that the
slave would return as allocation requires writing on the master.
</para>
<programlisting format="linespecific">
[global]
idmap domains = ALLDOMAINS
idmap config ALLDOMAINS:default = yes
idmap config ALLDOMAINS:backend = ldap
idmap config ALLDOMAINS:ldap_base_dn = ou=idmap,dc=example,dc=com
idmap config ALLDOMAINS:ldap_url = ldap://localhost/
idmap config ALLDOMAINS:range = 10000 - 50000
idmap alloc backend = ldap
idmap alloc config:ldap_base_dn = ou=idmap,dc=example,dc=com
idmap alloc config:ldap_url = ldap://master.example.com/
idmap alloc config:range = 10000 - 50000
</programlisting>
</refsect1>
<refsynopsisdiv>
<title>NOTE</title>
<para>In order to use authentication against ldap servers you may
need to provide a DN and a password. To avoid exposing the password
in plain text in the configuration file we store it into a security
store. The "net idmap " command is used to store a secret
for the DN specified in a specific idmap domain.
</para>
</refsynopsisdiv>
<refsect1>
<title>AUTHOR</title>
<para>
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.
</para>
</refsect1>
</refentry>
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