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<html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>idmap_ldap</title><link rel="stylesheet" href="../samba.css" type="text/css"><meta name="generator" content="DocBook XSL Stylesheets V1.75.2"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="refentry" title="idmap_ldap"><a name="idmap_ldap.8"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>idmap_ldap &#8212; Samba's idmap_ldap Backend for Winbind</p></div><div class="refsynopsisdiv" title="DESCRIPTION"><h2>DESCRIPTION</h2><p>The idmap_ldap plugin provides a means for Winbind to
	store and retrieve SID/uid/gid mapping tables in an LDAP directory
	service.
	</p><p>
	In contrast to read only backends like idmap_rid, it is an allocating
	backend: This means that it needs to allocate new user and group IDs in
	order to create new mappings.
	</p></div><div class="refsect1" title="IDMAP OPTIONS"><a name="id266343"></a><h2>IDMAP OPTIONS</h2><div class="variablelist"><dl><dt><span class="term">ldap_base_dn = DN</span></dt><dd><p>
			Defines the directory base suffix to use for
			SID/uid/gid mapping entries.  If not defined, idmap_ldap will default
			to using the "ldap idmap suffix" option from smb.conf.
		</p></dd><dt><span class="term">ldap_user_dn = DN</span></dt><dd><p>
			Defines the user DN to be used for authentication.
			The secret for authenticating this user should be
			stored with net idmap secret
			(see <a class="citerefentry" href="net.8.html"><span class="citerefentry"><span class="refentrytitle">net</span>(8)</span></a>).
			If absent, the ldap credentials from the ldap passdb configuration
			are used, and if these are also absent, an anonymous
			bind will be performed as last fallback.
		</p></dd><dt><span class="term">ldap_url = ldap://server/</span></dt><dd><p>
			Specifies the LDAP server to use for
			SID/uid/gid map entries. If not defined, idmap_ldap will
			assume that ldap://localhost/ should be used.
		</p></dd><dt><span class="term">range = low - high</span></dt><dd><p>
			Defines the available matching uid and gid range for which the
			backend is authoritative.
                </p></dd></dl></div></div><div class="refsect1" title="EXAMPLES"><a name="id266868"></a><h2>EXAMPLES</h2><p>
	The following example shows how an ldap directory is used as the
	default idmap backend. It also configures the idmap range and base
	directory suffix. The secret for the ldap_user_dn has to be set with
	"net idmap secret '*' password".
	</p><pre class="programlisting">
	[global]
	idmap config * : backend      = ldap
	idmap config * : range        = 1000000-1999999
	idmap config * : ldap_url     = ldap://localhost/
	idmap config * : ldap_base_dn = ou=idmap,dc=example,dc=com
	idmap config * : ldap_user_dn = cn=idmap_admin,dc=example,dc=com
	</pre><p>
	This example shows how ldap can be used as a readonly backend while
	tdb is the default backend used to store the mappings.
	It adds an explicit configuration for some domain DOM1, that
	uses the ldap idmap backend. Note that a range disjoint from the
	default range is used.
	</p><pre class="programlisting">
	[global]
	# "backend = tdb" is redundant here since it is the default
	idmap config * : backend = tdb
	idmap config * : range = 1000000-1999999

	idmap config DOM1 : backend = ldap
	idmap config DOM1 : range = 2000000-2999999
	idmap config DOM1 : read only = yes
	idmap config DOM1 : ldap_url = ldap://server/
	idmap config DOM1 : ldap_base_dn = ou=idmap,dc=dom1,dc=example,dc=com
	idmap config DOM1 : ldap_user_dn = cn=idmap_admin,dc=dom1,dc=example,dc=com
	</pre></div><div class="refsynopsisdiv" title="NOTE"><h2>NOTE</h2><p>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.
	</p></div><div class="refsect1" title="AUTHOR"><a name="id265711"></a><h2>AUTHOR</h2><p>
	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.
	</p></div></div></body></html>