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| <!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 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 16.3 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 /></div><div class="sect1" id="AUTH-CERT"><div class="titlepage"><div><div><h2 class="title" style="clear: both">21.12. Certificate Authentication <a href="#AUTH-CERT" class="id_link">#</a></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; |
| see <a class="xref" href="ssl-tcp.html#SSL-OPENSSL-CONFIG" title="19.9.2. OpenSSL Configuration">Section 19.9.2</a> for SSL configuration instructions. |
| 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 class="navfooter"><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 16.3 Documentation">Home</a></td><td width="40%" align="right" valign="top"> 21.13. PAM Authentication</td></tr></table></div></body></html> |
