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+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>21.12. Certificate Authentication</title><link rel="stylesheet" type="text/css" href="stylesheet.css" /><link rev="made" href="pgsql-docs@lists.postgresql.org" /><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><link rel="prev" href="auth-radius.html" title="21.11. RADIUS Authentication" /><link rel="next" href="auth-pam.html" title="21.13. PAM Authentication" /></head><body id="docContent" class="container-fluid col-10"><div xmlns="http://www.w3.org/TR/xhtml1/transitional" class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="5" align="center">21.12. Certificate Authentication</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="auth-radius.html" title="21.11. RADIUS Authentication">Prev</a> </td><td width="10%" align="left"><a accesskey="u" href="client-authentication.html" title="Chapter 21. Client Authentication">Up</a></td><th width="60%" align="center">Chapter 21. Client Authentication</th><td width="10%" align="right"><a accesskey="h" href="index.html" title="PostgreSQL 14.5 Documentation">Home</a></td><td width="10%" align="right"> <a accesskey="n" href="auth-pam.html" title="21.13. PAM Authentication">Next</a></td></tr></table><hr></hr></div><div class="sect1" id="AUTH-CERT"><div class="titlepage"><div><div><h2 class="title" style="clear: both">21.12. Certificate Authentication</h2></div></div></div><a id="id-1.6.8.19.2" class="indexterm"></a><p>
+ This authentication method uses SSL client certificates to perform
+ authentication. It is therefore only available for SSL connections.
+ When using this authentication method, the server will require that
+ the client provide a valid, trusted certificate. No password prompt
+ will be sent to the client. The <code class="literal">cn</code> (Common Name)
+ attribute of the certificate
+ will be compared to the requested database user name, and if they match
+ the login will be allowed. User name mapping can be used to allow
+ <code class="literal">cn</code> to be different from the database user name.
+ </p><p>
+ The following configuration options are supported for SSL certificate
+ authentication:
+ </p><div class="variablelist"><dl class="variablelist"><dt><span class="term"><code class="literal">map</code></span></dt><dd><p>
+ Allows for mapping between system and database user names. See
+ <a class="xref" href="auth-username-maps.html" title="21.2. User Name Maps">Section 21.2</a> for details.
+ </p></dd></dl></div><p>
+ </p><p>
+ It is redundant to use the <code class="literal">clientcert</code> option with
+ <code class="literal">cert</code> authentication because <code class="literal">cert</code>
+ authentication is effectively <code class="literal">trust</code> authentication
+ with <code class="literal">clientcert=verify-full</code>.
+ </p></div><div xmlns="http://www.w3.org/TR/xhtml1/transitional" class="navfooter"><hr></hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="auth-radius.html" title="21.11. RADIUS Authentication">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="client-authentication.html" title="Chapter 21. Client Authentication">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="auth-pam.html" title="21.13. PAM Authentication">Next</a></td></tr><tr><td width="40%" align="left" valign="top">21.11. RADIUS Authentication </td><td width="20%" align="center"><a accesskey="h" href="index.html" title="PostgreSQL 14.5 Documentation">Home</a></td><td width="40%" align="right" valign="top"> 21.13. PAM Authentication</td></tr></table></div></body></html> \ No newline at end of file