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81 lines
8.2 KiB
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--><title>mod_authz_groupfile - 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="<-" alt="<-" src="../images/left.gif" /></a></div><div id="path"><a href="http://www.apache.org/">Apache</a> > <a href="http://httpd.apache.org/">HTTP Server</a> > <a href="http://httpd.apache.org/docs-project/">Documentation</a> > <a href="../">Version 2.0</a> > <a href="./">Modules</a></div><div id="page-content"><div id="preamble"><h1>Apache Module mod_authz_groupfile</h1><table class="module"><tr><th><a href="module-dict.html#Description">Description:
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</a></th><td>Group authorization using plaintext files</td></tr><tr><th><a href="module-dict.html#Status">Status:
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</a></th><td>Extension</td></tr><tr><th><a href="module-dict.html#ModuleIdentifier">Module Identifier:
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</a></th><td>authz_groupfile_module</td></tr><tr><th><a href="module-dict.html#SourceFile">Source File:
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</a></th><td>mod_authz_groupfile.c</td></tr><tr><th><a href="module-dict.html#Compatibility">Compatibility:
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</a></th><td>Available in Apache 2.0.42 and later</td></tr></table><h3>Summary</h3>
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<p>This module provides authorization capabilities so that
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authenticated users can be allowed or denied access to portions
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of the web site by group membership. Similar functionality is
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provided by <code class="module"><a href="../mod/mod_authz_dbm.html">mod_authz_dbm</a></code>.</p>
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</div><div id="quickview"><h3 class="directives">Directives</h3><ul id="toc"><li><img alt="" src="../images/down.gif" /> <a href="#authgroupfile">AuthGroupFile</a></li><li><img alt="" src="../images/down.gif" /> <a href="#authzgroupfileauthoritative">AuthzGroupFileAuthoritative</a></li></ul><h3>See also</h3><ul class="seealso"><li><code class="directive"><a href="../mod/core.html#require">Require</a></code></li><li><code class="directive"><a href="../mod/core.html#satisfy">Satisfy</a></code></li></ul></div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div><div class="directive-section"><h2><a name="AuthGroupFile" id="AuthGroupFile">AuthGroupFile</a> <a name="authgroupfile" id="authgroupfile">Directive</a></h2><table class="directive"><tr><th><a href="directive-dict.html#Description">Description:
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</a></th><td>Sets the name of a text file containing the list
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of user groups for authentication</td></tr><tr><th><a href="directive-dict.html#Syntax">Syntax:
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</a></th><td>AuthGroupFile <em>file-path</em></td></tr><tr><th><a href="directive-dict.html#Context">Context:
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</a></th><td>directory, .htaccess</td></tr><tr><th><a href="directive-dict.html#Override">Override:
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</a></th><td>AuthConfig</td></tr><tr><th><a href="directive-dict.html#Status">Status:
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</a></th><td>Extension</td></tr><tr><th><a href="directive-dict.html#Module">Module:
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</a></th><td>mod_authz_groupfile</td></tr></table>
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<p>The <code class="directive">AuthGroupFile</code> directive sets the
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name of a textual file containing the list of user groups for user
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authentication. <em>File-path</em> is the path to the group
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file. If it is not absolute (<em>i.e.</em>, if it doesn't begin
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with a slash), it is treated as relative to the <code class="directive"><a href="../mod/core.html#serverroot">ServerRoot</a></code>.</p>
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<p>Each line of the group file contains a groupname followed by a
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colon, followed by the member usernames separated by spaces.
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Example:</p>
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<div class="example"><p><code>mygroup: bob joe anne</code></p></div>
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<p>Note that searching large text files is <em>very</em>
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inefficient; <code class="directive"><a href="../mod/mod_authz_dbm.html#authdbmgroupfile">AuthDBMGroupFile</a></code> should be used
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instead.</p>
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<div class="note"><h3>Security</h3>
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<p>Make sure that the <code class="directive">AuthGroupFile</code> is
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stored outside the document tree of the web-server; do <em>not</em>
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put it in the directory that it protects. Otherwise, clients will
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be able to download the <code class="directive">AuthGroupFile</code>.</p>
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</div>
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</div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div><div class="directive-section"><h2><a name="AuthzGroupFileAuthoritative" id="AuthzGroupFileAuthoritative">AuthzGroupFileAuthoritative</a> <a name="authzgroupfileauthoritative" id="authzgroupfileauthoritative">Directive</a></h2><table class="directive"><tr><th><a href="directive-dict.html#Description">Description:
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</a></th><td>Sets whether authorization will be passed on to lower level modules</td></tr><tr><th><a href="directive-dict.html#Syntax">Syntax:
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</a></th><td>AuthzGroupFileAuthoritative on|off</td></tr><tr><th><a href="directive-dict.html#Default">Default:
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</a></th><td><code>AuthzGroupFileAuthoritative on</code></td></tr><tr><th><a href="directive-dict.html#Context">Context:
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</a></th><td>directory, .htaccess</td></tr><tr><th><a href="directive-dict.html#Override">Override:
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</a></th><td>AuthConfig</td></tr><tr><th><a href="directive-dict.html#Status">Status:
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</a></th><td>Extension</td></tr><tr><th><a href="directive-dict.html#Module">Module:
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</a></th><td>mod_authz_groupfile</td></tr></table>
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<p>Setting the <code class="directive">AuthzGroupFileAuthoritative</code>
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directive explicitly to <strong>'off'</strong> allows for
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authorization to be passed on to lower level modules (as defined in
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the <code>Configuration</code> and <code>modules.c</code> file if
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there is <strong>no userID</strong> or <strong>rule</strong> matching
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the supplied userID. If there is a userID and/or rule specified; the
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usual password and access checks will be applied and a failure will
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give an Authorization Required reply.</p>
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<p>So if a valid <code class="directive"><a href="../mod/core.html#require">Require</a></code>
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directive applies to more than one module; then the first module
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will verify the credentials; and no access is passed on;
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regardless of the <code class="directive">AuthzGroupFileAuthoritative</code>
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setting.</p>
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<p>By default, control is not passed on and an unknown userID
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or rule will result in an Authorization Required reply. Not
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setting it thus keeps the system secure and forces an NCSA
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compliant behaviour.</p>
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<p>Security: Do consider the implications of allowing a user to
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allow fall-through in his .htaccess file; and verify that this
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is really what you want; Generally it is easier to just secure
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a single .htpasswd file, than it is to secure a database which
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might have more access interfaces.</p>
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</div></div><div id="footer"><p class="apache">Maintained by the <a href="http://httpd.apache.org/docs-project/">Apache HTTP Server Documentation Project</a></p><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></div></body></html> |