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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-04 12:17:33 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-04 12:17:33 +0000
commit5e45211a64149b3c659b90ff2de6fa982a5a93ed (patch)
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downloadpostgresql-15-5e45211a64149b3c659b90ff2de6fa982a5a93ed.tar.xz
postgresql-15-5e45211a64149b3c659b90ff2de6fa982a5a93ed.zip
Adding upstream version 15.5.upstream/15.5
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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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>21.11. RADIUS 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-ldap.html" title="21.10. LDAP Authentication" /><link rel="next" href="auth-cert.html" title="21.12. Certificate 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">21.11. RADIUS Authentication</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="auth-ldap.html" title="21.10. LDAP 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 15.5 Documentation">Home</a></td><td width="10%" align="right"> <a accesskey="n" href="auth-cert.html" title="21.12. Certificate Authentication">Next</a></td></tr></table><hr /></div><div class="sect1" id="AUTH-RADIUS"><div class="titlepage"><div><div><h2 class="title" style="clear: both">21.11. RADIUS Authentication</h2></div></div></div><a id="id-1.6.8.18.2" class="indexterm"></a><p>
+ This authentication method operates similarly to
+ <code class="literal">password</code> except that it uses RADIUS
+ as the password verification method. RADIUS is used only to validate
+ the user name/password pairs. Therefore the user must already
+ exist in the database before RADIUS can be used for
+ authentication.
+ </p><p>
+ When using RADIUS authentication, an Access Request message will be sent
+ to the configured RADIUS server. This request will be of type
+ <code class="literal">Authenticate Only</code>, and include parameters for
+ <code class="literal">user name</code>, <code class="literal">password</code> (encrypted) and
+ <code class="literal">NAS Identifier</code>. The request will be encrypted using
+ a secret shared with the server. The RADIUS server will respond to
+ this request with either <code class="literal">Access Accept</code> or
+ <code class="literal">Access Reject</code>. There is no support for RADIUS accounting.
+ </p><p>
+ Multiple RADIUS servers can be specified, in which case they will
+ be tried sequentially. If a negative response is received from
+ a server, the authentication will fail. If no response is received,
+ the next server in the list will be tried. To specify multiple
+ servers, separate the server names with commas and surround the list
+ with double quotes. If multiple servers are specified, the other
+ RADIUS options can also be given as comma-separated lists, to provide
+ individual values for each server. They can also be specified as
+ a single value, in which case that value will apply to all servers.
+ </p><p>
+ The following configuration options are supported for RADIUS:
+ </p><div class="variablelist"><dl class="variablelist"><dt><span class="term"><code class="literal">radiusservers</code></span></dt><dd><p>
+ The DNS names or IP addresses of the RADIUS servers to connect to.
+ This parameter is required.
+ </p></dd><dt><span class="term"><code class="literal">radiussecrets</code></span></dt><dd><p>
+ The shared secrets used when talking securely to the RADIUS
+ servers. This must have exactly the same value on the PostgreSQL
+ and RADIUS servers. It is recommended that this be a string of
+ at least 16 characters. This parameter is required.
+ </p><div class="note"><h3 class="title">Note</h3><p>
+ The encryption vector used will only be cryptographically
+ strong if <span class="productname">PostgreSQL</span> is built with support for
+ <span class="productname">OpenSSL</span>. In other cases, the transmission to the
+ RADIUS server should only be considered obfuscated, not secured, and
+ external security measures should be applied if necessary.
+ </p></div><p>
+ </p></dd><dt><span class="term"><code class="literal">radiusports</code></span></dt><dd><p>
+ The port numbers to connect to on the RADIUS servers. If no port
+ is specified, the default RADIUS port (<code class="literal">1812</code>)
+ will be used.
+ </p></dd><dt><span class="term"><code class="literal">radiusidentifiers</code></span></dt><dd><p>
+ The strings to be used as <code class="literal">NAS Identifier</code> in the
+ RADIUS requests. This parameter can be used, for example, to
+ identify which database cluster the user is attempting to connect
+ to, which can be useful for policy matching on
+ the RADIUS server. If no identifier is specified, the default
+ <code class="literal">postgresql</code> will be used.
+ </p></dd></dl></div><p>
+ </p><p>
+ If it is necessary to have a comma or whitespace in a RADIUS parameter
+ value, that can be done by putting double quotes around the value, but
+ it is tedious because two layers of double-quoting are now required.
+ An example of putting whitespace into RADIUS secret strings is:
+</p><pre class="programlisting">
+host ... radius radiusservers="server1,server2" radiussecrets="""secret one"",""secret two"""
+</pre><p>
+ </p></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="auth-ldap.html" title="21.10. LDAP 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-cert.html" title="21.12. Certificate Authentication">Next</a></td></tr><tr><td width="40%" align="left" valign="top">21.10. LDAP Authentication </td><td width="20%" align="center"><a accesskey="h" href="index.html" title="PostgreSQL 15.5 Documentation">Home</a></td><td width="40%" align="right" valign="top"> 21.12. Certificate Authentication</td></tr></table></div></body></html> \ No newline at end of file