apache/docs/manual/mod/mod_authn_core.xml

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

<!--
 Licensed to the Apache Software Foundation (ASF) under one or more
 contributor license agreements.  See the NOTICE file distributed with
 this work for additional information regarding copyright ownership.
 The ASF licenses this file to You 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_core.xml.meta">

<name>mod_authn_core</name> 
<description>Core Authentication</description>
<status>Base</status>
<sourcefile>mod_authn_core.c</sourcefile>
<identifier>authn_core_module</identifier>
<compatibility>Available in Apache 2.3 and later</compatibility>

<summary>
    <p>This module provides core authentication capabilities to 
    allow or deny access to portions of the web site. 
    <module>mod_authn_core</module> provides directives that are 
    common to all authentication providers.</p>
</summary>

<section id="authnalias"><title>Creating Provider Aliases</title>

    <p>Extended authentication providers can 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>

    <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 />
             require valid-user<br />
          </indent>
          &lt;/Directory&gt;<br />
        </example>
    </section>

</section>


<directivesynopsis>
<name>AuthName</name>
<description>Authorization realm for use in HTTP
authentication</description>
<syntax>AuthName <var>auth-domain</var></syntax>
<contextlist><context>directory</context><context>.htaccess</context>
</contextlist>
<override>AuthConfig</override>

<usage>
    <p>This directive sets the name of the authorization realm for a
    directory. This realm is given to the client so that the user
    knows which username and password to send.
    <directive>AuthName</directive> takes a single argument; if the
    realm name contains spaces, it must be enclosed in quotation
    marks.  It must be accompanied by <directive
    module="mod_authn_core">AuthType</directive> and <directive
    module="mod_authz_core">Require</directive> directives, and directives such
    as <directive module="mod_authn_file">AuthUserFile</directive> and
    <directive module="mod_authz_groupfile">AuthGroupFile</directive> to
    work.</p>

   <p>For example:</p>

   <example>
     AuthName "Top Secret"
   </example>

    <p>The string provided for the <code>AuthName</code> is what will
    appear in the password dialog provided by most browsers.</p>
</usage>
<seealso><a
    href="../howto/auth.html">Authentication, Authorization, and
    Access Control</a></seealso>
</directivesynopsis>

<directivesynopsis>
<name>AuthType</name>
<description>Type of user authentication</description>
<syntax>AuthType Basic|Digest</syntax>
<contextlist><context>directory</context><context>.htaccess</context>
</contextlist>
<override>AuthConfig</override>

<usage>
    <p>This directive selects the type of user authentication for a
    directory. The authentication types available are
    <code>Basic</code> (implemented by
    <module>mod_auth_basic</module>) and <code>Digest</code>
    (implemented by <module>mod_auth_digest</module>).</p>

    <p>To implement authentication, you must also use the <directive
    module="mod_authn_core">AuthName</directive> and <directive
    module="mod_authz_core">Require</directive> directives.  In addition, the
    server must have an authentication-provider module such as
    <module>mod_authn_file</module> and an authorization module such
    as <module>mod_authz_user</module>.</p>
</usage> 

<seealso><a href="../howto/auth.html">Authentication, Authorization,
    and Access Control</a></seealso> 
</directivesynopsis>

<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>
</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>