| 1 | <?xml version="1.0" encoding="iso-8859-1"?>
|
|---|
| 2 | <!DOCTYPE refentry PUBLIC "-//Samba-Team//DTD DocBook V4.2-Based Variant V1.0//EN" "http://www.samba.org/samba/DTD/samba-doc">
|
|---|
| 3 | <refentry id="idmap_tdb.8">
|
|---|
| 4 |
|
|---|
| 5 | <refmeta>
|
|---|
| 6 | <refentrytitle>idmap_tdb</refentrytitle>
|
|---|
| 7 | <manvolnum>8</manvolnum>
|
|---|
| 8 | <refmiscinfo class="source">Samba</refmiscinfo>
|
|---|
| 9 | <refmiscinfo class="manual">System Administration tools</refmiscinfo>
|
|---|
| 10 | <refmiscinfo class="version">3.5</refmiscinfo>
|
|---|
| 11 | </refmeta>
|
|---|
| 12 |
|
|---|
| 13 |
|
|---|
| 14 | <refnamediv>
|
|---|
| 15 | <refname>idmap_tdb</refname>
|
|---|
| 16 | <refpurpose>Samba's idmap_tdb Backend for Winbind</refpurpose>
|
|---|
| 17 | </refnamediv>
|
|---|
| 18 |
|
|---|
| 19 | <refsynopsisdiv>
|
|---|
| 20 | <title>DESCRIPTION</title>
|
|---|
| 21 |
|
|---|
| 22 | <para>
|
|---|
| 23 | The idmap_tdb plugin is the default backend used by winbindd
|
|---|
| 24 | for storing SID/uid/gid mapping tables.
|
|---|
| 25 | </para>
|
|---|
| 26 |
|
|---|
| 27 | <para>
|
|---|
| 28 | In contrast to read only backends like idmap_rid, it is an allocating
|
|---|
| 29 | backend: This means that it needs to allocate new user and group IDs in
|
|---|
| 30 | order to create new mappings. The allocator can be provided by the
|
|---|
| 31 | idmap_tdb backend itself or by any other allocating backend like
|
|---|
| 32 | idmap_ldap or idmap_tdb2. This is configured with the
|
|---|
| 33 | parameter <parameter>idmap alloc backend</parameter>.
|
|---|
| 34 | </para>
|
|---|
| 35 |
|
|---|
| 36 | <para>
|
|---|
| 37 | Note that in order for this (or any other allocating) backend to
|
|---|
| 38 | function at all, the default backend needs to be writeable.
|
|---|
| 39 | The ranges used for uid and gid allocation are the default ranges
|
|---|
| 40 | configured by "idmap uid" and "idmap gid".
|
|---|
| 41 | </para>
|
|---|
| 42 |
|
|---|
| 43 | <para>
|
|---|
| 44 | Furthermore, since there is only one global allocating backend
|
|---|
| 45 | responsible for all domains using writeable idmap backends,
|
|---|
| 46 | any explicitly configured domain with idmap backend tdb
|
|---|
| 47 | should have the same range as the default range, since it needs
|
|---|
| 48 | to use the global uid / gid allocator. See the example below.
|
|---|
| 49 | </para>
|
|---|
| 50 | </refsynopsisdiv>
|
|---|
| 51 |
|
|---|
| 52 | <refsect1>
|
|---|
| 53 | <title>IDMAP OPTIONS</title>
|
|---|
| 54 |
|
|---|
| 55 | <variablelist>
|
|---|
| 56 | <varlistentry>
|
|---|
| 57 | <term>range = low - high</term>
|
|---|
| 58 | <listitem><para>
|
|---|
| 59 | Defines the available matching uid and gid range for which the
|
|---|
| 60 | backend is authoritative.
|
|---|
| 61 | If the parameter is absent, Winbind fails over to use
|
|---|
| 62 | the "idmap uid" and "idmap gid" options
|
|---|
| 63 | from smb.conf.
|
|---|
| 64 | </para></listitem>
|
|---|
| 65 | </varlistentry>
|
|---|
| 66 | </variablelist>
|
|---|
| 67 | </refsect1>
|
|---|
| 68 |
|
|---|
| 69 | <refsect1>
|
|---|
| 70 | <title>EXAMPLES</title>
|
|---|
| 71 |
|
|---|
| 72 | <para>
|
|---|
| 73 | This example shows how tdb is used as a the default idmap backend.
|
|---|
| 74 | It configures the idmap range through the global options for all
|
|---|
| 75 | domains encountered. This same range is used for uid/gid allocation.
|
|---|
| 76 | </para>
|
|---|
| 77 |
|
|---|
| 78 | <programlisting>
|
|---|
| 79 | [global]
|
|---|
| 80 | # "idmap backend = tdb" is redundant here since it is the default
|
|---|
| 81 | idmap backend = tdb
|
|---|
| 82 | idmap uid = 1000000-2000000
|
|---|
| 83 | idmap gid = 1000000-2000000
|
|---|
| 84 | </programlisting>
|
|---|
| 85 |
|
|---|
| 86 | <para>
|
|---|
| 87 | This (rather theoretical) example shows how tdb can be used as the
|
|---|
| 88 | allocating backend while ldap is the default backend used to store
|
|---|
| 89 | the mappings.
|
|---|
| 90 | It adds an explicit configuration for some domain DOM1, that
|
|---|
| 91 | uses the tdb idmap backend. Note that the same range as the
|
|---|
| 92 | default uid/gid range is used, since the allocator has to serve
|
|---|
| 93 | both the default backend and the explicitly configured domain DOM1.
|
|---|
| 94 | </para>
|
|---|
| 95 |
|
|---|
| 96 | <programlisting>
|
|---|
| 97 | [global]
|
|---|
| 98 | idmap backend = ldap
|
|---|
| 99 | idmap uid = 1000000-2000000
|
|---|
| 100 | idmap gid = 1000000-2000000
|
|---|
| 101 | # use a different uid/gid allocator:
|
|---|
| 102 | idmap alloc backend = tdb
|
|---|
| 103 |
|
|---|
| 104 | idmap config DOM1 : backend = tdb
|
|---|
| 105 | idmap config DOM1 : range = 1000000-2000000
|
|---|
| 106 | </programlisting>
|
|---|
| 107 | </refsect1>
|
|---|
| 108 |
|
|---|
| 109 | <refsect1>
|
|---|
| 110 | <title>AUTHOR</title>
|
|---|
| 111 |
|
|---|
| 112 | <para>
|
|---|
| 113 | The original Samba software and related utilities
|
|---|
| 114 | were created by Andrew Tridgell. Samba is now developed
|
|---|
| 115 | by the Samba Team as an Open Source project similar
|
|---|
| 116 | to the way the Linux kernel is developed.
|
|---|
| 117 | </para>
|
|---|
| 118 | </refsect1>
|
|---|
| 119 |
|
|---|
| 120 | </refentry>
|
|---|
