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1472N/A<p class="apache">Apache HTTP Server Version 2.5</p>
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0N/A<div id="page-content">
1879N/A<div id="preamble"><h1>Apache Module mod_authz_owner</h1>
1879N/A<div class="toplang">
1879N/A<p><span>Available Languages: </span><a href="/en/mod/mod_authz_owner.html" title="English">&nbsp;en&nbsp;</a> |
1879N/A<a href="/fr/mod/mod_authz_owner.html" hreflang="fr" rel="alternate" title="Fran�ais">&nbsp;fr&nbsp;</a> |
1879N/A<a href="/ja/mod/mod_authz_owner.html" hreflang="ja" rel="alternate" title="Japanese">&nbsp;ja&nbsp;</a> |
0N/A<a href="/ko/mod/mod_authz_owner.html" hreflang="ko" rel="alternate" title="Korean">&nbsp;ko&nbsp;</a></p>
0N/A</div>
0N/A<table class="module"><tr><th><a href="module-dict.html#Description">Description:</a></th><td>Authorization based on file ownership</td></tr>
0N/A<tr><th><a href="module-dict.html#Status">Status:</a></th><td>Extension</td></tr>
0N/A<tr><th><a href="module-dict.html#ModuleIdentifier">Module�Identifier:</a></th><td>authz_owner_module</td></tr>
0N/A<tr><th><a href="module-dict.html#SourceFile">Source�File:</a></th><td>mod_authz_owner.c</td></tr>
0N/A<tr><th><a href="module-dict.html#Compatibility">Compatibility:</a></th><td>Available in Apache 2.1 and later</td></tr></table>
0N/A<h3>Summary</h3>
0N/A
0N/A    <p>This module authorizes access to files by comparing the userid used
0N/A    for HTTP authentication (the web userid) with the file-system owner or
0N/A    group of the requested file. The supplied username and password
0N/A    must be already properly verified by an authentication module,
0N/A    such as <code class="module"><a href="/mod/mod_auth_basic.html">mod_auth_basic</a></code> or
0N/A    <code class="module"><a href="/mod/mod_auth_digest.html">mod_auth_digest</a></code>. <code class="module"><a href="/mod/mod_authz_owner.html">mod_authz_owner</a></code>
0N/A    recognizes two arguments for the <code class="directive"><a href="/mod/mod_authz_core.html#require">Require</a></code> directive, <code>file-owner</code> and
0N/A    <code>file-group</code>, as follows:</p>
0N/A
0N/A    <dl>
0N/A      <dt><code>file-owner</code></dt>
0N/A      <dd>The supplied web-username must match the system's name for the
0N/A      owner of the file being requested. That is, if the operating system
0N/A      says the requested file is owned by <code>jones</code>, then the
0N/A      username used to access it through the web must be <code>jones</code>
0N/A      as well.</dd>
0N/A
0N/A      <dt><code>file-group</code></dt>
0N/A      <dd>The name of the system group that owns the file must be present
0N/A      in a group database, which is provided, for example, by <code class="module"><a href="/mod/mod_authz_groupfile.html">mod_authz_groupfile</a></code> or <code class="module"><a href="/mod/mod_authz_dbm.html">mod_authz_dbm</a></code>,
0N/A      and the web-username must be a member of that group. For example, if
0N/A      the operating system says the requested file is owned by (system)
0N/A      group <code>accounts</code>, the group <code>accounts</code> must
0N/A      appear in the group database and the web-username used in the request
0N/A      must be a member of that group.</dd>
0N/A    </dl>
0N/A
0N/A    <div class="note"><h3>Note</h3>
0N/A      <p>If <code class="module"><a href="/mod/mod_authz_owner.html">mod_authz_owner</a></code> is used in order to authorize
0N/A      a resource that is not actually present in the filesystem
126N/A      (<em>i.e.</em> a virtual resource), it will deny the access.</p>
126N/A
126N/A      <p>Particularly it will never authorize <a href="/content-negotiation.html#multiviews">content negotiated
0N/A      "MultiViews"</a> resources.</p>
0N/A    </div>
0N/A</div>
0N/A<div id="quickview"><h3 class="directives">Directives</h3>
0N/A<p>This module provides no
0N/A            directives.</p>
0N/A<h3>Topics</h3>
0N/A<ul id="topics">
0N/A<li><img alt="" src="/images/down.gif" /> <a href="#examples">Configuration Examples</a></li>
0N/A</ul><h3>See also</h3>
0N/A<ul class="seealso">
0N/A<li><code class="directive"><a href="/mod/mod_authz_core.html#require">Require</a></code></li>
0N/A</ul></div>
0N/A<div class="top"><a href="#page-header"><img alt="top" src="/images/up.gif" /></a></div>
0N/A<div class="section">
0N/A<h2><a name="examples" id="examples">Configuration Examples</a></h2>
0N/A
0N/A    <h3><a name="examples.file-owner" id="examples.file-owner">Require file-owner</a></h3>
1879N/A      <p>Consider a multi-user system running the Apache Web server, with
1879N/A      each user having his or her own files in <code>~/public_html/private</code>. Assuming that there is a single
      <code class="directive"><a href="/mod/mod_authn_dbm.html#authdbmuserfile">AuthDBMUserFile</a></code> database
      that lists all of their web-usernames, and that these usernames match
      the system's usernames that actually own the files on the server, then
      the following stanza would allow only the user himself access to his
      own files. User <code>jones</code> would not be allowed to access
      files in <code>/home/smith/public_html/private</code> unless they
      were owned by <code>jones</code> instead of <code>smith</code>.</p>

      <pre class="prettyprint lang-config">
&lt;Directory /home/*/public_html/private&gt;
    AuthType Basic
    AuthName MyPrivateFiles
    AuthBasicProvider dbm
    AuthDBMUserFile /usr/local/apache2/etc/.htdbm-all
    Require file-owner
&lt;/Directory&gt;
      </pre>


    <h3><a name="examples.file-group" id="examples.file-group">Require file-group</a></h3>
      <p>Consider a system similar to the one described above, but with
      some users that share their project files in
      <code>~/public_html/project-foo</code>. The files are owned by the
      system group <code>foo</code> and there is a single <code class="directive"><a href="/mod/mod_authz_dbm.html#authdbmgroupfile">AuthDBMGroupFile</a></code> database that
      contains all of the web-usernames and their group membership,
      <em>i.e.</em> they must be at least member of a group named
      <code>foo</code>. So if <code>jones</code> and <code>smith</code>
      are both member of the group <code>foo</code>, then both will be
      authorized to access the <code>project-foo</code> directories of
      each other.</p>

      <pre class="prettyprint lang-config">
&lt;Directory /home/*/public_html/project-foo&gt;
    AuthType Basic
    AuthName "Project Foo Files"
    AuthBasicProvider dbm

    # combined user/group database
    AuthDBMUserFile  /usr/local/apache2/etc/.htdbm-all
    AuthDBMGroupFile /usr/local/apache2/etc/.htdbm-all

    Satisfy All
    Require file-group
&lt;/Directory&gt;
      </pre>


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