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 <p class="apache">Apache HTTP Server Version 2.3</p>
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 <div id="page-content">
 <div id="preamble"><h1>Apache Module mod_authz_dbd</h1>
 <div class="toplang">
 <p><span>Available Languages: </span><a href="../en/mod/mod_authz_dbd.html" title="English">&nbsp;en&nbsp;</a></p>
 </div>
 <table class="module"><tr><th><a href="module-dict.html#Description">Description:</a></th><td>Group Authorization and Login using SQL</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>authz_dbd_module</td></tr>
 <tr><th><a href="module-dict.html#SourceFile">Source File:</a></th><td>mod_authz_dbd.c</td></tr>
 <tr><th><a href="module-dict.html#Compatibility">Compatibility:</a></th><td>Available in Apache 2.2 and later</td></tr></table>
 <h3>Summary</h3>

     <p>This module provides authorization capabilities so that
        authenticated users can be allowed or denied access to portions
        of the web site by group membership. It also provides
        database/backend login/logout in conjunction with
        <code class="module"><a href="../mod/mod_authn_dbd.html">mod_authn_dbd</a></code>.</p>
 </div>
 <div id="quickview"><h3 class="directives">Directives</h3>
 <ul id="toc">
 <li><img alt="" src="../images/down.gif" /> <a href="#authzdbdauthoritative">AuthzDBDAuthoritative</a></li>
 <li><img alt="" src="../images/down.gif" /> <a href="#authzdbdlogintoreferer">AuthzDBDLoginToReferer</a></li>
 <li><img alt="" src="../images/down.gif" /> <a href="#authzdbdquery">AuthzDBDQuery</a></li>
 <li><img alt="" src="../images/down.gif" /> <a href="#authzdbdredirectquery">AuthzDBDRedirectQuery</a></li>
 </ul>
 <h3>Topics</h3>
 <ul id="topics">
 <li><img alt="" src="../images/down.gif" /> <a href="#login">Database Login</a></li>
 <li><img alt="" src="../images/down.gif" /> <a href="#client">Client Login</a></li>
 <li><img alt="" src="../images/down.gif" /> <a href="#example">Configuration Example</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>
 <li><code class="directive"><a href="../mod/mod_dbd.html#dbdriver">DBDriver</a></code></li>
 <li><code class="directive"><a href="../mod/mod_dbd.html#dbdparams">DBDParams</a></code></li>
 </ul></div>
 <div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
 <div class="section">
 <h2><a name="login" id="login">Database Login</a></h2>

 <p>In addition to the standard authz function of checking group
 membership, this module provides database Login/Logout capability.
 Specifically, we can maintain a logged in/logged out status in
 the database, and control the status via designated URLs (subject
 of course to users supplying the necessary credentials).</p>
 <p>This works by defining two special
 <code class="directive"><a href="../mod/core.html#require">Require</a></code> types:
 <code>Require dbd-login</code> and <code>Require dbd-logout</code>.
 For usage details, see the configuration example below.</p>
 </div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
 <div class="section">
 <h2><a name="client" id="client">Client Login</a></h2>

 <p>In conjunction with server login/logout, we may wish to implement
 clientside login/out, for example by setting and unsetting a cookie
 or other such token.  Although this is not the business of an authz
 module, client session management software should be able to tie its
 operation in to database login/logout.  To support this,
 <code class="module"><a href="../mod/mod_authz_dbd.html">mod_authz_dbd</a></code> exports an optional hook that will
 be run whenever a user successfully logs into or out of the database.
 Session management modules can use the hook to implement functions
 to start and end a client session.</p>
 </div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
 <div class="section">
 <h2><a name="example" id="example">Configuration Example</a></h2>

 <div class="example"><pre><code>
 # DBD Configuration
 DBDriver oracle
 DBDParams "dbname=apacheauth user=apache pass=xxxxxx"

 DBDMin  4
 DBDKeep 8
 DBDMax  20
 DBDExptime 300

 &lt;Directory /usr/www/my.site/team-private/&gt;
    # authn with mod_authn_dbd
    AuthType Basic
    AuthName Team
    AuthBasicProvider dbd
    AuthDBDUserPWQuery "SELECT pass FROM authn WHERE user = %s AND login = true"

    # Require dbd-group and authz_dbd implementation
    Require dbd-group team
    AuthzDBDQuery "SELECT group FROM authz WHERE user = %s"

    # When a user fails to authn/authz, invite them to login
    ErrorDocument 401 /team-private/login-form.html

    &lt;Files login.html&gt;
       # Don't require that we're already logged in!
       AuthDBDUserPWQuery "SELECT pass FROM authn WHERE user = %s"

       # dbd-login action executes a query to set our own state
       Require dbd-login
       AuthzDBDQuery "UPDATE authn SET login = true WHERE user = %s"

       # Return user to referring page (if any) on successful login
       AuthzDBDLoginToReferer On
    &lt;/Files&gt;

    &lt;Files logout.html&gt;
       # dbd-logout action executes a query to set our own state
       Require dbd-logout
       AuthzDBDQuery "UPDATE authn SET login = false WHERE user = %s"
    &lt;/Files&gt;
 &lt;/Directory&gt;
 </code></pre></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="AuthzDBDAuthoritative" id="AuthzDBDAuthoritative">AuthzDBDAuthoritative</a> <a name="authzdbdauthoritative" id="authzdbdauthoritative">Directive</a></h2>
 <table class="directive">
 <tr><th><a href="directive-dict.html#Description">Description:</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:</a></th><td><code>AuthzDBDAuthoritative On|Off</code></td></tr>
 <tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>AuthzDBDAuthoritative On</code></td></tr>
 <tr><th><a href="directive-dict.html#Context">Context:</a></th><td>directory</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_authz_dbd</td></tr>
 </table>
     <p>Setting the <code class="directive">AuthzDBDAuthoritative</code>
     directive explicitly to <code>Off</code> allows group authorization
     to be handled by another authz module if the userID is not
     in any authorized dbd-group. If there are any groups
     specified, the usual checks will be applied and a failure will
     give an Authentication Required reply.</p>

     <p>So if a userID appears in the database of more than one module;
     or if a valid <code class="directive"><a href="../mod/core.html#require">Require</a></code>
     directive applies to more than one module; then the first module
     will verify the credentials; and no access is passed on;
     regardless of the <code class="directive">AuthAuthoritative</code> setting.</p>

     <p>A common use for this is in conjunction with one of the
     auth providers; such or
     <code class="module"><a href="../mod/mod_authn_file.html">mod_authn_file</a></code>. Whereas this DBD module supplies
     the bulk of the user credential checking; a few (administrator) related
     accesses fall through to a lower level with a well protected
     <code>.htpasswd</code> file.</p>

     <p>By default, control is not passed on and an unknown group
     will result in an Authentication Required reply. Not
     setting it thus keeps the system secure and forces an NCSA
     compliant behaviour.</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="AuthzDBDLoginToReferer" id="AuthzDBDLoginToReferer">AuthzDBDLoginToReferer</a> <a name="authzdbdlogintoreferer" id="authzdbdlogintoreferer">Directive</a></h2>
 <table class="directive">
 <tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Determines whether to redirect the Client to the Referring
 page on successful login or logout if a <code>Referer</code> request
 header is present</td></tr>
 <tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>AuthzDBDLoginToReferer On|Off</code></td></tr>
 <tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>AuthzDBDLoginToReferer Off</code></td></tr>
 <tr><th><a href="directive-dict.html#Context">Context:</a></th><td>directory</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_authz_dbd</td></tr>
 </table>
     <p>In conjunction with <code>Require dbd-login</code> or
     <code>Require dbd-logout</code>, this provides the option to
     redirect the client back to the Referring page (the URL in
     the <code>Referer</code> HTTP request header, if present.
     When there is no <code>Referer</code> header,
     <code>AuthzDBDLoginToReferer On</code> will be ignored.</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="AuthzDBDQuery" id="AuthzDBDQuery">AuthzDBDQuery</a> <a name="authzdbdquery" id="authzdbdquery">Directive</a></h2>
 <table class="directive">
 <tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Specify the SQL Query for the required operation</td></tr>
 <tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>AuthzDBDQuery SQL-Query</code></td></tr>
 <tr><th><a href="directive-dict.html#Context">Context:</a></th><td>directory</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_authz_dbd</td></tr>
 </table>
     <p>The <code class="directive">AuthzDBDQuery</code> specifies an SQL
     query to run.  The purpose of the query depends on the
     <code class="directive"><a href="../mod/core.html#require">Require</a></code> directive in
     effect.</p>
     <ul>
     <li>With <code>Require dbd-group</code>, it specifies a query
     to look up groups for the current user.  This is the standard
     functionality of other authz modules such as
     <code class="module"><a href="../mod/mod_authz_file.html">mod_authz_file</a></code> and <code class="module"><a href="../mod/mod_authz_dbm.html">mod_authz_dbm</a></code>.
     In this case it will typically take the form<br />
     <code>AuthzDBDQuery "SELECT group FROM groups WHERE user= %s"</code>
     </li>
     <li>With <code>Require dbd-login</code> or <code>Require dbd-logout</code>,
     it will never deny access, but will instead execute an SQL Query
     designed to log the user (who must already be authenticated with
     <code class="module"><a href="../mod/mod_authn_dbd.html">mod_authn_dbd</a></code>) in or out.  Such a query will
     typically take the form<br />
     <code>AuthzDBDQuery "UPDATE authn SET login = true WHERE user = %s"</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="AuthzDBDRedirectQuery" id="AuthzDBDRedirectQuery">AuthzDBDRedirectQuery</a> <a name="authzdbdredirectquery" id="authzdbdredirectquery">Directive</a></h2>
 <table class="directive">
 <tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Specify a query to look up a login page for the user</td></tr>
 <tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>AuthzDBDRedirectQuery SQL-Query</code></td></tr>
 <tr><th><a href="directive-dict.html#Context">Context:</a></th><td>directory</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_authz_dbd</td></tr>
 </table>
     <p>Specifies an optional query to use after successful login
     (or logout) to redirect the user to a page, which may be
     specific to the user.  Such a query will take the form<br />
     <code>AuthzDBDRedirectQuery "SELECT userpage FROM userpages WHERE user = %s"</code>
     </p>
     <p>Note that <code class="directive">AuthzDBDLoginToReferer</code> takes
     precedence if both are set.</p>

 </div>
 </div>
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 <p><span>Available Languages: </span><a href="../en/mod/mod_authz_dbd.html" title="English">&nbsp;en&nbsp;</a></p>
 </div><div id="footer">
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	<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 2.3</a> > <a href="./">Modules</a></div>
	<div id="page-content">
	<div id="preamble"><h1>Apache Module mod_authz_dbd</h1>
	<div class="toplang">
	<p><span>Available Languages: </span><a href="../en/mod/mod_authz_dbd.html" title="English"> en </a></p>
	</div>
	<table class="module"><tr><th><a href="module-dict.html#Description">Description:</a></th><td>Group Authorization and Login using SQL</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>authz_dbd_module</td></tr>
	<tr><th><a href="module-dict.html#SourceFile">Source File:</a></th><td>mod_authz_dbd.c</td></tr>
	<tr><th><a href="module-dict.html#Compatibility">Compatibility:</a></th><td>Available in Apache 2.2 and later</td></tr></table>
	<h3>Summary</h3>

	<p>This module provides authorization capabilities so that
	authenticated users can be allowed or denied access to portions
	of the web site by group membership. It also provides
	database/backend login/logout in conjunction with
	<code class="module"><a href="../mod/mod_authn_dbd.html">mod_authn_dbd</a></code>.</p>
	</div>
	<div id="quickview"><h3 class="directives">Directives</h3>
	<ul id="toc">
	<li><img alt="" src="../images/down.gif" /> <a href="#authzdbdauthoritative">AuthzDBDAuthoritative</a></li>
	<li><img alt="" src="../images/down.gif" /> <a href="#authzdbdlogintoreferer">AuthzDBDLoginToReferer</a></li>
	<li><img alt="" src="../images/down.gif" /> <a href="#authzdbdquery">AuthzDBDQuery</a></li>
	<li><img alt="" src="../images/down.gif" /> <a href="#authzdbdredirectquery">AuthzDBDRedirectQuery</a></li>
	</ul>
	<h3>Topics</h3>
	<ul id="topics">
	<li><img alt="" src="../images/down.gif" /> <a href="#login">Database Login</a></li>
	<li><img alt="" src="../images/down.gif" /> <a href="#client">Client Login</a></li>
	<li><img alt="" src="../images/down.gif" /> <a href="#example">Configuration Example</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>
	<li><code class="directive"><a href="../mod/mod_dbd.html#dbdriver">DBDriver</a></code></li>
	<li><code class="directive"><a href="../mod/mod_dbd.html#dbdparams">DBDParams</a></code></li>
	</ul></div>
	<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
	<div class="section">
	<h2><a name="login" id="login">Database Login</a></h2>

	<p>In addition to the standard authz function of checking group
	membership, this module provides database Login/Logout capability.
	Specifically, we can maintain a logged in/logged out status in
	the database, and control the status via designated URLs (subject
	of course to users supplying the necessary credentials).</p>
	<p>This works by defining two special
	<code class="directive"><a href="../mod/core.html#require">Require</a></code> types:
	<code>Require dbd-login</code> and <code>Require dbd-logout</code>.
	For usage details, see the configuration example below.</p>
	</div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
	<div class="section">
	<h2><a name="client" id="client">Client Login</a></h2>

	<p>In conjunction with server login/logout, we may wish to implement
	clientside login/out, for example by setting and unsetting a cookie
	or other such token. Although this is not the business of an authz
	module, client session management software should be able to tie its
	operation in to database login/logout. To support this,
	<code class="module"><a href="../mod/mod_authz_dbd.html">mod_authz_dbd</a></code> exports an optional hook that will
	be run whenever a user successfully logs into or out of the database.
	Session management modules can use the hook to implement functions
	to start and end a client session.</p>
	</div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
	<div class="section">
	<h2><a name="example" id="example">Configuration Example</a></h2>

	<div class="example"><pre><code>
	# DBD Configuration
	DBDriver oracle
	DBDParams "dbname=apacheauth user=apache pass=xxxxxx"

	DBDMin 4
	DBDKeep 8
	DBDMax 20
	DBDExptime 300

	<Directory /usr/www/my.site/team-private/>
	# authn with mod_authn_dbd
	AuthType Basic
	AuthName Team
	AuthBasicProvider dbd
	AuthDBDUserPWQuery "SELECT pass FROM authn WHERE user = %s AND login = true"

	# Require dbd-group and authz_dbd implementation
	Require dbd-group team
	AuthzDBDQuery "SELECT group FROM authz WHERE user = %s"

	# When a user fails to authn/authz, invite them to login
	ErrorDocument 401 /team-private/login-form.html

	<Files login.html>
	# Don't require that we're already logged in!
	AuthDBDUserPWQuery "SELECT pass FROM authn WHERE user = %s"

	# dbd-login action executes a query to set our own state
	Require dbd-login
	AuthzDBDQuery "UPDATE authn SET login = true WHERE user = %s"

	# Return user to referring page (if any) on successful login
	AuthzDBDLoginToReferer On
	</Files>

	<Files logout.html>
	# dbd-logout action executes a query to set our own state
	Require dbd-logout
	AuthzDBDQuery "UPDATE authn SET login = false WHERE user = %s"
	</Files>
	</Directory>
	</code></pre></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="AuthzDBDAuthoritative" id="AuthzDBDAuthoritative">AuthzDBDAuthoritative</a> <a name="authzdbdauthoritative" id="authzdbdauthoritative">Directive</a></h2>
	<table class="directive">
	<tr><th><a href="directive-dict.html#Description">Description:</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:</a></th><td><code>AuthzDBDAuthoritative On\|Off</code></td></tr>
	<tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>AuthzDBDAuthoritative On</code></td></tr>
	<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>directory</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_authz_dbd</td></tr>
	</table>
	<p>Setting the <code class="directive">AuthzDBDAuthoritative</code>
	directive explicitly to <code>Off</code> allows group authorization
	to be handled by another authz module if the userID is not
	in any authorized dbd-group. If there are any groups
	specified, the usual checks will be applied and a failure will
	give an Authentication Required reply.</p>

	<p>So if a userID appears in the database of more than one module;
	or if a valid <code class="directive"><a href="../mod/core.html#require">Require</a></code>
	directive applies to more than one module; then the first module
	will verify the credentials; and no access is passed on;
	regardless of the <code class="directive">AuthAuthoritative</code> setting.</p>

	<p>A common use for this is in conjunction with one of the
	auth providers; such or
	<code class="module"><a href="../mod/mod_authn_file.html">mod_authn_file</a></code>. Whereas this DBD module supplies
	the bulk of the user credential checking; a few (administrator) related
	accesses fall through to a lower level with a well protected
	<code>.htpasswd</code> file.</p>

	<p>By default, control is not passed on and an unknown group
	will result in an Authentication Required reply. Not
	setting it thus keeps the system secure and forces an NCSA
	compliant behaviour.</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="AuthzDBDLoginToReferer" id="AuthzDBDLoginToReferer">AuthzDBDLoginToReferer</a> <a name="authzdbdlogintoreferer" id="authzdbdlogintoreferer">Directive</a></h2>
	<table class="directive">
	<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Determines whether to redirect the Client to the Referring
	page on successful login or logout if a <code>Referer</code> request
	header is present</td></tr>
	<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>AuthzDBDLoginToReferer On\|Off</code></td></tr>
	<tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>AuthzDBDLoginToReferer Off</code></td></tr>
	<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>directory</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_authz_dbd</td></tr>
	</table>
	<p>In conjunction with <code>Require dbd-login</code> or
	<code>Require dbd-logout</code>, this provides the option to
	redirect the client back to the Referring page (the URL in
	the <code>Referer</code> HTTP request header, if present.
	When there is no <code>Referer</code> header,
	<code>AuthzDBDLoginToReferer On</code> will be ignored.</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="AuthzDBDQuery" id="AuthzDBDQuery">AuthzDBDQuery</a> <a name="authzdbdquery" id="authzdbdquery">Directive</a></h2>
	<table class="directive">
	<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Specify the SQL Query for the required operation</td></tr>
	<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>AuthzDBDQuery SQL-Query</code></td></tr>
	<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>directory</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_authz_dbd</td></tr>
	</table>
	<p>The <code class="directive">AuthzDBDQuery</code> specifies an SQL
	query to run. The purpose of the query depends on the
	<code class="directive"><a href="../mod/core.html#require">Require</a></code> directive in
	effect.</p>
	<ul>
	<li>With <code>Require dbd-group</code>, it specifies a query
	to look up groups for the current user. This is the standard
	functionality of other authz modules such as
	<code class="module"><a href="../mod/mod_authz_file.html">mod_authz_file</a></code> and <code class="module"><a href="../mod/mod_authz_dbm.html">mod_authz_dbm</a></code>.
	In this case it will typically take the form<br />
	<code>AuthzDBDQuery "SELECT group FROM groups WHERE user= %s"</code>
	</li>
	<li>With <code>Require dbd-login</code> or <code>Require dbd-logout</code>,
	it will never deny access, but will instead execute an SQL Query
	designed to log the user (who must already be authenticated with
	<code class="module"><a href="../mod/mod_authn_dbd.html">mod_authn_dbd</a></code>) in or out. Such a query will
	typically take the form<br />
	<code>AuthzDBDQuery "UPDATE authn SET login = true WHERE user = %s"</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="AuthzDBDRedirectQuery" id="AuthzDBDRedirectQuery">AuthzDBDRedirectQuery</a> <a name="authzdbdredirectquery" id="authzdbdredirectquery">Directive</a></h2>
	<table class="directive">
	<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Specify a query to look up a login page for the user</td></tr>
	<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>AuthzDBDRedirectQuery SQL-Query</code></td></tr>
	<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>directory</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_authz_dbd</td></tr>
	</table>
	<p>Specifies an optional query to use after successful login
	(or logout) to redirect the user to a page, which may be
	specific to the user. Such a query will take the form<br />
	<code>AuthzDBDRedirectQuery "SELECT userpage FROM userpages WHERE user = %s"</code>
	</p>
	<p>Note that <code class="directive">AuthzDBDLoginToReferer</code> takes
	precedence if both are set.</p>

	</div>
	</div>
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