apache/docs/manual/mod/mod_authn_alias.xml

<?xml version="1.0"?>
<!DOCTYPE modulesynopsis SYSTEM "../style/modulesynopsis.dtd">
<?xml-stylesheet type="text/xsl" href="../style/manual.en.xsl"?>
<!-- $LastChangedRevision$ -->

<!--
 Copyright 2002-2005 The Apache Software Foundation or its licensors, as
 applicable.

 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
 You may obtain a copy of the License at

     http://www.apache.org/licenses/LICENSE-2.0

 Unless required by applicable law or agreed to in writing, software
 distributed under the License is distributed on an "AS IS" BASIS,
 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.
-->

<modulesynopsis metafile="mod_authn_alias.xml.meta">

<name>mod_authn_alias</name>
<description>Provides the ability to create extended authentication 
    providers based on actual providers</description>
<status>Extension</status>
<sourcefile>mod_authn_alias.c</sourcefile>
<identifier>authn_alias_module</identifier>
<compatibility>Available in Apache 2.1 and later</compatibility>

<summary>
    <p>This module allows extended authentication providers to be created 
    within the configuration file and assigned an alias name.  The alias 
    providers can then be referenced through the directives 
    <directive module="mod_auth_basic">AuthBasicProvider</directive> or 
    <directive module="mod_auth_digest">AuthDigestProvider</directive> in
    the same way as a base authentication provider.  Besides the ability
    to create and alias an extended provider, it also allows the same 
    extended authentication provider to be reference by multiple 
    locations.</p>

</summary>

<section id="example"><title>Example</title>
    <p>The example below creates two different ldap authentication 
    provider aliases based on the ldap provider.  This allows
    a single authenticated location can be serviced by multiple 
    ldap hosts:</p>

    <example><title>Example</title>
      LoadModule authn_alias_module modules/mod_authn_alias.so<br /><br />
      &lt;AuthnProviderAlias ldap ldap-alias1&gt;<br />
      <indent>
         AuthLDAPBindDN cn=youruser,o=ctx<br />
         AuthLDAPBindPassword yourpassword<br />
         AuthLDAPURL ldap://ldap.host/o=ctx<br />
      </indent>
      &lt;/AuthnProviderAlias&gt;<br /><br />
      &lt;AuthnProviderAlias ldap ldap-other-alias&gt;<br />
      <indent>
         AuthLDAPBindDN cn=yourotheruser,o=dev<br />
         AuthLDAPBindPassword yourotherpassword<br />
         AuthLDAPURL ldap://other.ldap.host/o=dev?cn<br />
      </indent>
      &lt;/AuthnProviderAlias&gt;<br /><br />

      Alias /secure /webpages/secure<br />
      &lt;Directory /webpages/secure&gt;<br />
      <indent>
         Order deny,allow<br />
         Allow from all<br /><br />
    
         AuthBasicProvider ldap-other-alias  ldap-alias1<br /><br />
    
         AuthType Basic<br />
         AuthName LDAP_Protected_Place<br />
         AuthzLDAPAuthoritative off<br />
         require valid-user<br />
      </indent>
      &lt;/Directory&gt;<br />
    </example>
</section>

<directivesynopsis type="section">
<name>AuthnProviderAlias</name>
<description>Enclose a group of directives that represent an
extension of a base authentication provider and referenced by
the specified alias</description>
<syntax>&lt;AuthnProviderAlias <var>baseProvider Alias</var>&gt;
... &lt;/AuthnProviderAlias&gt;</syntax>
<contextlist><context>server config</context><context>virtual host</context>
</contextlist>

<usage>
    <p><directive type="section">AuthnProviderAlias</directive> and
    <code>&lt;/AuthnProviderAlias&gt;</code> are used to enclose a group of
    authentication directives that can be referenced by the alias name 
    using one of the directives <directive module="mod_auth_basic">
    AuthBasicProvider</directive> or <directive module="mod_auth_digest">
    AuthDigestProvider</directive>.</p>

</usage>
</directivesynopsis>

</modulesynopsis>