| 1 | <?xml version="1.0" encoding="iso-8859-1"?>
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| 2 | <!DOCTYPE refentry PUBLIC "-//Samba-Team//DTD DocBook V4.2-Based Variant V1.0//EN" "http://www.samba.org/samba/DTD/samba-doc">
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| 3 | <refentry id="idmap_ad.8">
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| 4 |
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| 5 | <refmeta>
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| 6 | <refentrytitle>idmap_ad</refentrytitle>
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| 7 | <manvolnum>8</manvolnum>
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| 8 | <refmiscinfo class="source">Samba</refmiscinfo>
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| 9 | <refmiscinfo class="manual">System Administration tools</refmiscinfo>
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| 10 | <refmiscinfo class="version">3.6</refmiscinfo>
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| 11 | </refmeta>
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| 12 |
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| 13 |
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| 14 | <refnamediv>
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| 15 | <refname>idmap_ad</refname>
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| 16 | <refpurpose>Samba's idmap_ad Backend for Winbind</refpurpose>
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| 17 | </refnamediv>
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| 18 |
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| 19 | <refsynopsisdiv>
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| 20 | <title>DESCRIPTION</title>
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| 21 | <para>The idmap_ad plugin provides a way for Winbind to read
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| 22 | id mappings from an AD server that uses RFC2307/SFU schema
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| 23 | extensions. This module implements only the "idmap"
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| 24 | API, and is READONLY. Mappings must be provided in advance
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| 25 | by the administrator by adding the posixAccount/posixGroup
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| 26 | classes and relative attribute/value pairs to the user and
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| 27 | group objects in the AD.</para>
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| 28 |
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| 29 | <para>
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| 30 | Note that the idmap_ad module has changed considerably since
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| 31 | Samba versions 3.0 and 3.2.
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| 32 | Currently, the <parameter>ad</parameter> backend
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| 33 | does not work as the the default idmap backend, but one has
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| 34 | to configure it separately for each domain for which one wants
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| 35 | to use it, using disjoint ranges. One usually needs to configure
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| 36 | a writeable default idmap range, using for example the
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| 37 | <parameter>tdb</parameter> or <parameter>ldap</parameter>
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| 38 | backend, in order to be able to map the BUILTIN sids and
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| 39 | possibly other trusted domains. The writeable default config
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| 40 | is also needed in order to be able to create group mappings.
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| 41 | This catch-all default idmap configuration should have a range
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| 42 | that is disjoint from any explicitly configured domain with
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| 43 | idmap backend <parameter>ad</parameter>. See the example below.
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| 44 | </para>
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| 45 | </refsynopsisdiv>
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| 46 |
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| 47 | <refsect1>
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| 48 | <title>IDMAP OPTIONS</title>
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| 49 |
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| 50 | <variablelist>
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| 51 | <varlistentry>
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| 52 | <term>range = low - high</term>
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| 53 | <listitem><para>
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| 54 | Defines the available matching UID and GID range for which the
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| 55 | backend is authoritative. Note that the range acts as a filter.
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| 56 | If specified any UID or GID stored in AD that fall outside the
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| 57 | range is ignored and the corresponding map is discarded.
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| 58 | It is intended as a way to avoid accidental UID/GID overlaps
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| 59 | between local and remotely defined IDs.
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| 60 | </para></listitem>
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| 61 | </varlistentry>
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| 62 | <varlistentry>
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| 63 | <term>schema_mode = <rfc2307 | sfu ></term>
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| 64 | <listitem><para>
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| 65 | Defines the schema that idmap_ad should use when querying
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| 66 | Active Directory regarding user and group information.
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| 67 | This can be either the RFC2307 schema support included
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| 68 | in Windows 2003 R2 or the Service for Unix (SFU) schema.
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| 69 | </para></listitem>
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| 70 | </varlistentry>
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| 71 | </variablelist>
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| 72 | </refsect1>
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| 73 |
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| 74 | <refsect1>
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| 75 | <title>EXAMPLES</title>
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| 76 | <para>
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| 77 | The following example shows how to retrieve idmappings from our principal and
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| 78 | trusted AD domains. If trusted domains are present id conflicts must be
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| 79 | resolved beforehand, there is no
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| 80 | guarantee on the order conflicting mappings would be resolved at this point.
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| 81 |
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| 82 | This example also shows how to leave a small non conflicting range for local
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| 83 | id allocation that may be used in internal backends like BUILTIN.
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| 84 | </para>
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| 85 |
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| 86 | <programlisting>
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| 87 | [global]
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| 88 | idmap config * : backend = tdb
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| 89 | idmap config * : range = 1000000-1999999
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| 90 |
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| 91 | idmap config CORP : backend = ad
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| 92 | idmap config CORP : range = 1000-999999
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| 93 | </programlisting>
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| 94 | </refsect1>
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| 95 |
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| 96 | <refsect1>
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| 97 | <title>AUTHOR</title>
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| 98 |
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| 99 | <para>
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| 100 | The original Samba software and related utilities
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| 101 | were created by Andrew Tridgell. Samba is now developed
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| 102 | by the Samba Team as an Open Source project similar
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| 103 | to the way the Linux kernel is developed.
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| 104 | </para>
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| 105 | </refsect1>
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| 106 |
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| 107 | </refentry>
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