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      --><title>mod_auth_anon - Apache HTTP Server</title><link href="../style/css/manual.css" rel="stylesheet" media="all" type="text/css" title="Main stylesheet" /><link href="../style/css/manual-loose-100pc.css" rel="alternate stylesheet" media="all" type="text/css" title="No Sidebar - Default font size" /><link href="../style/css/manual-print.css" rel="stylesheet" media="print" type="text/css" /><link href="../images/favicon.ico" rel="shortcut icon" /></head><body><div id="page-header"><p class="menu"><a href="../mod/">Modules</a> | <a href="../mod/directives.html">Directives</a> | <a href="../faq/">FAQ</a> | <a href="../glossary.html">Glossary</a> | <a href="../sitemap.html">Sitemap</a></p><p class="apache">Apache HTTP Server Version 2.0</p><img alt="" src="../images/feather.gif" /></div><div class="up"><a href="./"><img title="&lt;-" alt="&lt;-" src="../images/left.gif" /></a></div><div id="path"><a href="http://www.apache.org/">Apache</a> &gt; <a href="http://httpd.apache.org/">HTTP Server</a> &gt; <a href="http://httpd.apache.org/docs-project/">Documentation</a> &gt; <a href="../">Version 2.0</a> &gt; <a href="./">Modules</a></div><div id="page-content"><div id="preamble"><h1>Apache Module mod_auth_anon</h1><table class="module"><tr><th><a href="module-dict.html#Description">Description:
                  </a></th><td>Allows "anonymous" user access to authenticated
    areas</td></tr><tr><th><a href="module-dict.html#Status">Status:
                  </a></th><td>Extension</td></tr><tr><th><a href="module-dict.html#ModuleIdentifier">Module Identifier:
                  </a></th><td>auth_anon_module</td></tr><tr><th><a href="module-dict.html#SourceFile">Source File:
                  </a></th><td>mod_auth_anon.c</td></tr></table><h3>Summary</h3>
    <p>This module does access control in a manner similar to
    anonymous-ftp sites; <em>i.e.</em> have a 'magic' user id
    'anonymous' and the email address as a password. These email
    addresses can be logged.</p>

    <p>Combined with other (database) access control methods, this
    allows for effective user tracking and customization according
    to a user profile while still keeping the site open for
    'unregistered' users. One advantage of using Auth-based user
    tracking is that, unlike magic-cookies and funny URL
    pre/postfixes, it is completely browser independent and it
    allows users to share URLs.</p>
</div><div id="quickview"><h3 class="directives">Directives</h3><ul id="toc"><li><img alt="" src="../images/down.gif" /> <a href="#anonymous">Anonymous</a></li><li><img alt="" src="../images/down.gif" /> <a href="#anonymous_authoritative">Anonymous_Authoritative</a></li><li><img alt="" src="../images/down.gif" /> <a href="#anonymous_logemail">Anonymous_LogEmail</a></li><li><img alt="" src="../images/down.gif" /> <a href="#anonymous_mustgiveemail">Anonymous_MustGiveEmail</a></li><li><img alt="" src="../images/down.gif" /> <a href="#anonymous_nouserid">Anonymous_NoUserID</a></li><li><img alt="" src="../images/down.gif" /> <a href="#anonymous_verifyemail">Anonymous_VerifyEmail</a></li></ul><h3>Topics</h3><ul id="topics"><li><img alt="" src="../images/down.gif" /> Example</li></ul></div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div><div class="section"><h2>Example</h2>

    <p>The example below (when combined with the Auth directives of a
    htpasswd-file based (or GDM, mSQL <em>etc.</em>) base access
    control system allows users in as 'guests' with the following
    properties:</p>

    <ul>
      <li>It insists that the user enters a userId.
      (<code>Anonymous_NoUserId</code>)</li>

      <li>It insists that the user enters a password.
      (<code>Anonymous_MustGiveEmail</code>)</li>

      <li>The password entered must be a valid email address, ie.
      contain at least one '@' and a '.'.
      (<code>Anonymous_VerifyEmail</code>)</li>

      <li>The userID must be one of <code>anonymous guest www test
      welcome</code> and comparison is <strong>not</strong> case
      sensitive.</li>

      <li>And the Email addresses entered in the passwd field are
      logged to the error log file
      (<code>Anonymous_LogEmail</code>)</li>
    </ul>

    <p>Excerpt of httpd.conf:</p>

<div class="example"><p><code>
       Anonymous_NoUserId off<br />
       Anonymous_MustGiveEmail on<br />
       Anonymous_VerifyEmail on<br />
       Anonymous_LogEmail on<br />
       Anonymous anonymous guest www test welcome<br />
<br />
      AuthName "Use 'anonymous' &amp; Email address for
      guest entry"<br />
      AuthType basic<br />
<br />
       # An
      AuthUserFile/AuthDBUserFile/AuthDBMUserFile<br />
       # directive must be specified, or use<br />
       # Anonymous_Authoritative for public access.<br />
       # In the .htaccess for the public directory, add:<br />
       &lt;Files *&gt;<br />
       Order Deny,Allow<br />
       Allow from all<br />
<br />
       Require valid-user<br />
       &lt;/Files&gt;<br />
</code></p></div>
</div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div><div class="directive-section"><h2><a name="Anonymous" id="Anonymous">Anonymous</a> <a name="anonymous" id="anonymous">Directive</a></h2><table class="directive"><tr><th><a href="directive-dict.html#Description">Description: 
              </a></th><td>Specifies userIDs that areallowed access without
password verification</td></tr><tr><th><a href="directive-dict.html#Syntax">Syntax:
              </a></th><td>Anonymous <em>user</em> [<em>user</em>] ...</td></tr><tr><th><a href="directive-dict.html#Context">Context:
              </a></th><td>directory, .htaccess</td></tr><tr><th><a href="directive-dict.html#Override">Override:
              </a></th><td>AuthConfig</td></tr><tr><th><a href="directive-dict.html#Status">Status:
              </a></th><td>Extension</td></tr><tr><th><a href="directive-dict.html#Module">Module:
              </a></th><td>mod_auth_anon</td></tr></table>
    <p>A list of one or more 'magic' userIDs which are allowed
    access without password verification. The userIDs are space
    separated. It is possible to use the ' and " quotes to allow a
    space in a userID as well as the \ escape character.</p>

    <p>Please note that the comparison is
    <strong>case-IN-sensitive</strong>.<br />
     I strongly suggest that the magic username
    '<code>anonymous</code>' is always one of the allowed
    userIDs.</p>

    <p>Example:</p>
<div class="example"><p><code>Anonymous anonymous "Not Registered" 'I don\'t know'</code></p></div>

    <p>This would allow the user to enter without password
    verification by using the userId's 'anonymous',
    'AnonyMous','Not Registered' and 'I Don't Know'.</p>
</div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div><div class="directive-section"><h2><a name="Anonymous_Authoritative" id="Anonymous_Authoritative">Anonymous_Authoritative</a> <a name="anonymous_authoritative" id="anonymous_authoritative">Directive</a></h2><table class="directive"><tr><th><a href="directive-dict.html#Description">Description: 
              </a></th><td>Configures if authorization will fall-through
to other methods</td></tr><tr><th><a href="directive-dict.html#Syntax">Syntax:
              </a></th><td>Anonymous_Authoritative on|off</td></tr><tr><th><a href="directive-dict.html#Default">Default: 
              </a></th><td><code>Anonymous_Authoritative off</code></td></tr><tr><th><a href="directive-dict.html#Context">Context:
              </a></th><td>directory, .htaccess</td></tr><tr><th><a href="directive-dict.html#Override">Override:
              </a></th><td>AuthConfig</td></tr><tr><th><a href="directive-dict.html#Status">Status:
              </a></th><td>Extension</td></tr><tr><th><a href="directive-dict.html#Module">Module:
              </a></th><td>mod_auth_anon</td></tr></table>
    <p>When set 'on', there is no fall-through to other authorization
    methods. So if a userID does not match the values specified in the
    <code class="directive"><a href="#anonymous">Anonymous</a></code> directive,
    access is denied.</p>

    <p>Be sure you know what you are doing when you decide to
    switch it on. And remember that it is the linking order of the
    modules (in the Configuration / Make file) which details the
    order in which the Authorization modules are queried.</p>
</div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div><div class="directive-section"><h2><a name="Anonymous_LogEmail" id="Anonymous_LogEmail">Anonymous_LogEmail</a> <a name="anonymous_logemail" id="anonymous_logemail">Directive</a></h2><table class="directive"><tr><th><a href="directive-dict.html#Description">Description: 
              </a></th><td>Sets whether the password entered will be logged in the
error log</td></tr><tr><th><a href="directive-dict.html#Syntax">Syntax:
              </a></th><td>Anonymous_LogEmail on|off</td></tr><tr><th><a href="directive-dict.html#Default">Default: 
              </a></th><td><code>Anonymous_LogEmail on</code></td></tr><tr><th><a href="directive-dict.html#Context">Context:
              </a></th><td>directory, .htaccess</td></tr><tr><th><a href="directive-dict.html#Override">Override:
              </a></th><td>AuthConfig</td></tr><tr><th><a href="directive-dict.html#Status">Status:
              </a></th><td>Extension</td></tr><tr><th><a href="directive-dict.html#Module">Module:
              </a></th><td>mod_auth_anon</td></tr></table>
    <p>When set <code>on</code>, the default, the 'password' entered
    (which hopefully contains a sensible email address) is logged in
    the error log.</p>
</div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div><div class="directive-section"><h2><a name="Anonymous_MustGiveEmail" id="Anonymous_MustGiveEmail">Anonymous_MustGiveEmail</a> <a name="anonymous_mustgiveemail" id="anonymous_mustgiveemail">Directive</a></h2><table class="directive"><tr><th><a href="directive-dict.html#Description">Description: 
              </a></th><td>Specifies whether blank passwords are allowed</td></tr><tr><th><a href="directive-dict.html#Syntax">Syntax:
              </a></th><td>Anonymous_MustGiveEmail on|off</td></tr><tr><th><a href="directive-dict.html#Default">Default: 
              </a></th><td><code>Anonymous_MustGiveEmail on</code></td></tr><tr><th><a href="directive-dict.html#Context">Context:
              </a></th><td>directory, .htaccess</td></tr><tr><th><a href="directive-dict.html#Override">Override:
              </a></th><td>AuthConfig</td></tr><tr><th><a href="directive-dict.html#Status">Status:
              </a></th><td>Extension</td></tr><tr><th><a href="directive-dict.html#Module">Module:
              </a></th><td>mod_auth_anon</td></tr></table>
    <p>Specifies whether the user must specify an email address as
    the password. This prohibits blank passwords.</p>
</div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div><div class="directive-section"><h2><a name="Anonymous_NoUserID" id="Anonymous_NoUserID">Anonymous_NoUserID</a> <a name="anonymous_nouserid" id="anonymous_nouserid">Directive</a></h2><table class="directive"><tr><th><a href="directive-dict.html#Description">Description: 
              </a></th><td>Sets whether the userID field may be empty</td></tr><tr><th><a href="directive-dict.html#Syntax">Syntax:
              </a></th><td>Anonymous_NoUserID on|off</td></tr><tr><th><a href="directive-dict.html#Default">Default: 
              </a></th><td><code>Anonymous_NoUserID off</code></td></tr><tr><th><a href="directive-dict.html#Context">Context:
              </a></th><td>directory, .htaccess</td></tr><tr><th><a href="directive-dict.html#Override">Override:
              </a></th><td>AuthConfig</td></tr><tr><th><a href="directive-dict.html#Status">Status:
              </a></th><td>Extension</td></tr><tr><th><a href="directive-dict.html#Module">Module:
              </a></th><td>mod_auth_anon</td></tr></table>
    <p>When set <code>on</code>, users can leave the userID (and
    perhaps the password field) empty. This can be very convenient for
    MS-Explorer users who can just hit return or click directly on the
    OK button; which seems a natural reaction.</p>
</div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div><div class="directive-section"><h2><a name="Anonymous_VerifyEmail" id="Anonymous_VerifyEmail">Anonymous_VerifyEmail</a> <a name="anonymous_verifyemail" id="anonymous_verifyemail">Directive</a></h2><table class="directive"><tr><th><a href="directive-dict.html#Description">Description: 
              </a></th><td>Sets whether to check the password field for a correctly
formatted email address</td></tr><tr><th><a href="directive-dict.html#Syntax">Syntax:
              </a></th><td>Anonymous_VerifyEmail on|off</td></tr><tr><th><a href="directive-dict.html#Default">Default: 
              </a></th><td><code>Anonymous_VerifyEmail off</code></td></tr><tr><th><a href="directive-dict.html#Context">Context:
              </a></th><td>directory, .htaccess</td></tr><tr><th><a href="directive-dict.html#Override">Override:
              </a></th><td>AuthConfig</td></tr><tr><th><a href="directive-dict.html#Status">Status:
              </a></th><td>Extension</td></tr><tr><th><a href="directive-dict.html#Module">Module:
              </a></th><td>mod_auth_anon</td></tr></table>
    <p>When set <code>on</code> the 'password' entered is checked for
    at least one '@' and a '.' to encourage users to enter valid email
    addresses (see the above <code class="directive"><a href="#auth_logemail">Auth_LogEmail</a></code>).</p>
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