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_ldap.8">
6 <refentrytitle>idmap_ldap</refentrytitle>
7 <manvolnum>8</manvolnum>
8 <refmiscinfo class="source">Samba</refmiscinfo>
9 <refmiscinfo class="manual">System Administration tools</refmiscinfo>
10 <refmiscinfo class="version">4.2</refmiscinfo>
15 <refname>idmap_ldap</refname>
16 <refpurpose>Samba's idmap_ldap Backend for Winbind</refpurpose>
20 <title>DESCRIPTION</title>
22 <para>The idmap_ldap plugin provides a means for Winbind to
23 store and retrieve SID/uid/gid mapping tables in an LDAP directory
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.
36 <title>IDMAP OPTIONS</title>
40 <term>ldap_base_dn = DN</term>
42 Defines the directory base suffix to use for
43 SID/uid/gid mapping entries. If not defined, idmap_ldap will default
44 to using the "ldap idmap suffix" option from smb.conf.
49 <term>ldap_user_dn = DN</term>
51 Defines the user DN to be used for authentication.
52 The secret for authenticating this user should be
53 stored with net idmap secret
54 (see <citerefentry><refentrytitle>net</refentrytitle>
55 <manvolnum>8</manvolnum></citerefentry>).
56 If absent, the ldap credentials from the ldap passdb configuration
57 are used, and if these are also absent, an anonymous
58 bind will be performed as last fallback.
63 <term>ldap_url = ldap://server/</term>
65 Specifies the LDAP server to use for
66 SID/uid/gid map entries. If not defined, idmap_ldap will
67 assume that ldap://localhost/ should be used.
72 <term>range = low - high</term>
74 Defines the available matching uid and gid range for which the
75 backend is authoritative.
82 <title>EXAMPLES</title>
85 The following example shows how an ldap directory is used as the
86 default idmap backend. It also configures the idmap range and base
87 directory suffix. The secret for the ldap_user_dn has to be set with
88 "net idmap secret '*' password".
93 idmap config * : backend = ldap
94 idmap config * : range = 1000000-1999999
95 idmap config * : ldap_url = ldap://localhost/
96 idmap config * : ldap_base_dn = ou=idmap,dc=example,dc=com
97 idmap config * : ldap_user_dn = cn=idmap_admin,dc=example,dc=com
101 This example shows how ldap can be used as a readonly backend while
102 tdb is the default backend used to store the mappings.
103 It adds an explicit configuration for some domain DOM1, that
104 uses the ldap idmap backend. Note that a range disjoint from the
105 default range is used.
110 # "backend = tdb" is redundant here since it is the default
111 idmap config * : backend = tdb
112 idmap config * : range = 1000000-1999999
114 idmap config DOM1 : backend = ldap
115 idmap config DOM1 : range = 2000000-2999999
116 idmap config DOM1 : read only = yes
117 idmap config DOM1 : ldap_url = ldap://server/
118 idmap config DOM1 : ldap_base_dn = ou=idmap,dc=dom1,dc=example,dc=com
119 idmap config DOM1 : ldap_user_dn = cn=idmap_admin,dc=dom1,dc=example,dc=com
126 <para>In order to use authentication against ldap servers you may
127 need to provide a DN and a password. To avoid exposing the password
128 in plain text in the configuration file we store it into a security
129 store. The "net idmap " command is used to store a secret
130 for the DN specified in a specific idmap domain.
135 <title>AUTHOR</title>
138 The original Samba software and related utilities
139 were created by Andrew Tridgell. Samba is now developed
140 by the Samba Team as an Open Source project similar
141 to the way the Linux kernel is developed.