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2 <!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>20.16. Authentication Problems</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-oauth.html" title="20.15. OAuth Authorization/Authentication" /><link rel="next" href="user-manag.html" title="Chapter 21. Database Roles" /></head><body id="docContent" class="container-fluid col-10"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="5" align="center">20.16. Authentication Problems</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="auth-oauth.html" title="20.15. OAuth Authorization/Authentication">Prev</a> </td><td width="10%" align="left"><a accesskey="u" href="client-authentication.html" title="Chapter 20. Client Authentication">Up</a></td><th width="60%" align="center">Chapter 20. Client Authentication</th><td width="10%" align="right"><a accesskey="h" href="index.html" title="PostgreSQL 18.0 Documentation">Home</a></td><td width="10%" align="right"> <a accesskey="n" href="user-manag.html" title="Chapter 21. Database Roles">Next</a></td></tr></table><hr /></div><div class="sect1" id="CLIENT-AUTHENTICATION-PROBLEMS"><div class="titlepage"><div><div><h2 class="title" style="clear: both">20.16. Authentication Problems <a href="#CLIENT-AUTHENTICATION-PROBLEMS" class="id_link">#</a></h2></div></div></div><p>
3 Authentication failures and related problems generally
4 manifest themselves through error messages like the following:
6 </p><pre class="programlisting">
7 FATAL: no pg_hba.conf entry for host "123.123.123.123", user "andym", database "testdb"
9 This is what you are most likely to get if you succeed in contacting
10 the server, but it does not want to talk to you. As the message
11 suggests, the server refused the connection request because it found
12 no matching entry in its <code class="filename">pg_hba.conf</code>
15 </p><pre class="programlisting">
16 FATAL: password authentication failed for user "andym"
18 Messages like this indicate that you contacted the server, and it is
19 willing to talk to you, but not until you pass the authorization
20 method specified in the <code class="filename">pg_hba.conf</code> file. Check
21 the password you are providing, or check your Kerberos or ident
22 software if the complaint mentions one of those authentication
25 </p><pre class="programlisting">
26 FATAL: user "andym" does not exist
28 The indicated database user name was not found.
30 </p><pre class="programlisting">
31 FATAL: database "testdb" does not exist
33 The database you are trying to connect to does not exist. Note that
34 if you do not specify a database name, it defaults to the database
36 </p><div class="tip"><h3 class="title">Tip</h3><p>
37 The server log might contain more information about an
38 authentication failure than is reported to the client. If you are
39 confused about the reason for a failure, check the server log.
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