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diff --git a/doc/html/admin/troubleshoot.html b/doc/html/admin/troubleshoot.html new file mode 100644 index 000000000000..85782d4b97f7 --- /dev/null +++ b/doc/html/admin/troubleshoot.html @@ -0,0 +1,273 @@ +<!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>Troubleshooting — MIT Kerberos Documentation</title> + + <link rel="stylesheet" href="../_static/agogo.css" type="text/css" /> + <link rel="stylesheet" href="../_static/pygments.css" type="text/css" /> + <link rel="stylesheet" href="../_static/kerb.css" type="text/css" /> + + <script type="text/javascript"> + var DOCUMENTATION_OPTIONS = { + URL_ROOT: '../', + VERSION: '1.15.1', + COLLAPSE_INDEX: false, + FILE_SUFFIX: '.html', + HAS_SOURCE: true + }; + </script> + <script type="text/javascript" src="../_static/jquery.js"></script> + <script type="text/javascript" src="../_static/underscore.js"></script> + <script type="text/javascript" src="../_static/doctools.js"></script> + <link rel="author" title="About these documents" href="../about.html" /> + <link rel="copyright" title="Copyright" href="../copyright.html" /> + <link rel="top" title="MIT Kerberos Documentation" href="../index.html" /> + <link rel="up" title="For administrators" href="index.html" /> + <link rel="next" title="Advanced topics" href="advanced/index.html" /> + <link rel="prev" title="Environment variables" href="env_variables.html" /> + </head> + <body> + <div class="header-wrapper"> + <div class="header"> + + + <h1><a href="../index.html">MIT Kerberos Documentation</a></h1> + + <div class="rel"> + + <a href="../index.html" title="Full Table of Contents" + accesskey="C">Contents</a> | + <a href="env_variables.html" title="Environment variables" + accesskey="P">previous</a> | + <a href="advanced/index.html" title="Advanced topics" + accesskey="N">next</a> | + <a href="../genindex.html" title="General Index" + accesskey="I">index</a> | + <a href="../search.html" title="Enter search criteria" + accesskey="S">Search</a> | + <a href="mailto:krb5-bugs@mit.edu?subject=Documentation__Troubleshooting">feedback</a> + </div> + </div> + </div> + + <div class="content-wrapper"> + <div class="content"> + <div class="document"> + + <div class="documentwrapper"> + <div class="bodywrapper"> + <div class="body"> + + <div class="section" id="troubleshooting"> +<span id="troubleshoot"></span><h1>Troubleshooting<a class="headerlink" href="#troubleshooting" title="Permalink to this headline">¶</a></h1> +<div class="section" id="trace-logging"> +<span id="id1"></span><h2>Trace logging<a class="headerlink" href="#trace-logging" title="Permalink to this headline">¶</a></h2> +<p>Most programs using MIT krb5 1.9 or later can be made to provide +information about internal krb5 library operations using trace +logging. To enable this, set the <strong>KRB5_TRACE</strong> environment variable +to a filename before running the program. On many operating systems, +the filename <tt class="docutils literal"><span class="pre">/dev/stdout</span></tt> can be used to send trace logging output +to standard output.</p> +<p>Some programs do not honor <strong>KRB5_TRACE</strong>, either because they use +secure library contexts (this generally applies to setuid programs and +parts of the login system) or because they take direct control of the +trace logging system using the API.</p> +<p>Here is a short example showing trace logging output for an invocation +of the <a class="reference internal" href="../user/user_commands/kvno.html#kvno-1"><em>kvno</em></a> command:</p> +<div class="highlight-python"><div class="highlight"><pre>shell% env KRB5_TRACE=/dev/stdout kvno krbtgt/KRBTEST.COM +[9138] 1332348778.823276: Getting credentials user@KRBTEST.COM -> + krbtgt/KRBTEST.COM@KRBTEST.COM using ccache + FILE:/me/krb5/build/testdir/ccache +[9138] 1332348778.823381: Retrieving user@KRBTEST.COM -> + krbtgt/KRBTEST.COM@KRBTEST.COM from + FILE:/me/krb5/build/testdir/ccache with result: 0/Unknown code 0 +krbtgt/KRBTEST.COM@KRBTEST.COM: kvno = 1 +</pre></div> +</div> +</div> +<div class="section" id="list-of-errors"> +<h2>List of errors<a class="headerlink" href="#list-of-errors" title="Permalink to this headline">¶</a></h2> +<div class="section" id="frequently-seen-errors"> +<h3>Frequently seen errors<a class="headerlink" href="#frequently-seen-errors" title="Permalink to this headline">¶</a></h3> +<ol class="arabic simple"> +<li><a class="reference internal" href="#init-creds-etype-nosupp"><em>KDC has no support for encryption type while getting initial credentials</em></a></li> +<li><a class="reference internal" href="#cert-chain-etype-nosupp"><em>credential verification failed: KDC has no support for encryption type</em></a></li> +<li><a class="reference internal" href="#err-cert-chain-cert-expired"><em>Cannot create cert chain: certificate has expired</em></a></li> +</ol> +</div> +<div class="section" id="errors-seen-by-admins"> +<h3>Errors seen by admins<a class="headerlink" href="#errors-seen-by-admins" title="Permalink to this headline">¶</a></h3> +<ol class="arabic simple" id="prop-failed-start"> +<li><a class="reference internal" href="#kprop-no-route"><em>kprop: No route to host while connecting to server</em></a></li> +<li><a class="reference internal" href="#kprop-con-refused"><em>kprop: Connection refused while connecting to server</em></a></li> +<li><a class="reference internal" href="#kprop-sendauth-exchange"><em>kprop: Server rejected authentication (during sendauth exchange) while authenticating to server</em></a></li> +</ol> +<hr class="docutils" id="prop-failed-end" /> +<div class="section" id="kdc-has-no-support-for-encryption-type-while-getting-initial-credentials"> +<span id="init-creds-etype-nosupp"></span><h4>KDC has no support for encryption type while getting initial credentials<a class="headerlink" href="#kdc-has-no-support-for-encryption-type-while-getting-initial-credentials" title="Permalink to this headline">¶</a></h4> +</div> +<div class="section" id="credential-verification-failed-kdc-has-no-support-for-encryption-type"> +<span id="cert-chain-etype-nosupp"></span><h4>credential verification failed: KDC has no support for encryption type<a class="headerlink" href="#credential-verification-failed-kdc-has-no-support-for-encryption-type" title="Permalink to this headline">¶</a></h4> +<p>This most commonly happens when trying to use a principal with only +DES keys, in a release (MIT krb5 1.7 or later) which disables DES by +default. DES encryption is considered weak due to its inadequate key +size. If you cannot migrate away from its use, you can re-enable DES +by adding <tt class="docutils literal"><span class="pre">allow_weak_crypto</span> <span class="pre">=</span> <span class="pre">true</span></tt> to the <a class="reference internal" href="conf_files/krb5_conf.html#libdefaults"><em>[libdefaults]</em></a> +section of <a class="reference internal" href="conf_files/krb5_conf.html#krb5-conf-5"><em>krb5.conf</em></a>.</p> +</div> +<div class="section" id="cannot-create-cert-chain-certificate-has-expired"> +<span id="err-cert-chain-cert-expired"></span><h4>Cannot create cert chain: certificate has expired<a class="headerlink" href="#cannot-create-cert-chain-certificate-has-expired" title="Permalink to this headline">¶</a></h4> +<p>This error message indicates that PKINIT authentication failed because +the client certificate, KDC certificate, or one of the certificates in +the signing chain above them has expired.</p> +<p>If the KDC certificate has expired, this message appears in the KDC +log file, and the client will receive a “Preauthentication failed” +error. (Prior to release 1.11, the KDC log file message erroneously +appears as “Out of memory”. Prior to release 1.12, the client will +receive a “Generic error”.)</p> +<p>If the client or a signing certificate has expired, this message may +appear in <a class="reference internal" href="#trace-logging">trace_logging</a> output from <a class="reference internal" href="../user/user_commands/kinit.html#kinit-1"><em>kinit</em></a> or, starting in +release 1.12, as an error message from kinit or another program which +gets initial tickets. The error message is more likely to appear +properly on the client if the principal entry has no long-term keys.</p> +</div> +<div class="section" id="kprop-no-route-to-host-while-connecting-to-server"> +<span id="kprop-no-route"></span><h4>kprop: No route to host while connecting to server<a class="headerlink" href="#kprop-no-route-to-host-while-connecting-to-server" title="Permalink to this headline">¶</a></h4> +<p>Make sure that the hostname of the slave (as given to kprop) is +correct, and that any firewalls between the master and the slave allow +a connection on port 754.</p> +</div> +<div class="section" id="kprop-connection-refused-while-connecting-to-server"> +<span id="kprop-con-refused"></span><h4>kprop: Connection refused while connecting to server<a class="headerlink" href="#kprop-connection-refused-while-connecting-to-server" title="Permalink to this headline">¶</a></h4> +<p>If the slave is intended to run kpropd out of inetd, make sure that +inetd is configured to accept krb5_prop connections. inetd may need +to be restarted or sent a SIGHUP to recognize the new configuration. +If the slave is intended to run kpropd in standalone mode, make sure +that it is running.</p> +</div> +<div class="section" id="kprop-server-rejected-authentication-during-sendauth-exchange-while-authenticating-to-server"> +<span id="kprop-sendauth-exchange"></span><h4>kprop: Server rejected authentication (during sendauth exchange) while authenticating to server<a class="headerlink" href="#kprop-server-rejected-authentication-during-sendauth-exchange-while-authenticating-to-server" title="Permalink to this headline">¶</a></h4> +<p>Make sure that:</p> +<ol class="arabic simple"> +<li>The time is synchronized between the master and slave KDCs.</li> +<li>The master stash file was copied from the master to the expected +location on the slave.</li> +<li>The slave has a keytab file in the default location containing a +<tt class="docutils literal"><span class="pre">host</span></tt> principal for the slave’s hostname.</li> +</ol> +</div> +</div> +</div> +</div> + + + </div> + </div> + </div> + </div> + <div class="sidebar"> + <h2>On this page</h2> + <ul> +<li><a class="reference internal" href="#">Troubleshooting</a><ul> +<li><a class="reference internal" href="#trace-logging">Trace logging</a></li> +<li><a class="reference internal" href="#list-of-errors">List of errors</a><ul> +<li><a class="reference internal" href="#frequently-seen-errors">Frequently seen errors</a></li> +<li><a class="reference internal" href="#errors-seen-by-admins">Errors seen by admins</a><ul> +<li><a class="reference internal" href="#kdc-has-no-support-for-encryption-type-while-getting-initial-credentials">KDC has no support for encryption type while getting initial credentials</a></li> +<li><a class="reference internal" href="#credential-verification-failed-kdc-has-no-support-for-encryption-type">credential verification failed: KDC has no support for encryption type</a></li> +<li><a class="reference internal" href="#cannot-create-cert-chain-certificate-has-expired">Cannot create cert chain: certificate has expired</a></li> +<li><a class="reference internal" href="#kprop-no-route-to-host-while-connecting-to-server">kprop: No route to host while connecting to server</a></li> +<li><a class="reference internal" href="#kprop-connection-refused-while-connecting-to-server">kprop: Connection refused while connecting to server</a></li> +<li><a class="reference internal" href="#kprop-server-rejected-authentication-during-sendauth-exchange-while-authenticating-to-server">kprop: Server rejected authentication (during sendauth exchange) while authenticating to server</a></li> +</ul> +</li> +</ul> +</li> +</ul> +</li> +</ul> + + <br/> + <h2>Table of contents</h2> + <ul class="current"> +<li class="toctree-l1"><a class="reference internal" href="../user/index.html">For users</a></li> +<li class="toctree-l1 current"><a class="reference internal" href="index.html">For administrators</a><ul class="current"> +<li class="toctree-l2"><a class="reference internal" href="install.html">Installation guide</a></li> +<li class="toctree-l2"><a class="reference internal" href="conf_files/index.html">Configuration Files</a></li> +<li class="toctree-l2"><a class="reference internal" href="realm_config.html">Realm configuration decisions</a></li> +<li class="toctree-l2"><a class="reference internal" href="database.html">Database administration</a></li> +<li class="toctree-l2"><a class="reference internal" href="lockout.html">Account lockout</a></li> +<li class="toctree-l2"><a class="reference internal" href="conf_ldap.html">Configuring Kerberos with OpenLDAP back-end</a></li> +<li class="toctree-l2"><a class="reference internal" href="appl_servers.html">Application servers</a></li> +<li class="toctree-l2"><a class="reference internal" href="host_config.html">Host configuration</a></li> +<li class="toctree-l2"><a class="reference internal" href="backup_host.html">Backups of secure hosts</a></li> +<li class="toctree-l2"><a class="reference internal" href="pkinit.html">PKINIT configuration</a></li> +<li class="toctree-l2"><a class="reference internal" href="otp.html">OTP Preauthentication</a></li> +<li class="toctree-l2"><a class="reference internal" href="princ_dns.html">Principal names and DNS</a></li> +<li class="toctree-l2"><a class="reference internal" href="enctypes.html">Encryption types</a></li> +<li class="toctree-l2"><a class="reference internal" href="https.html">HTTPS proxy configuration</a></li> +<li class="toctree-l2"><a class="reference internal" href="auth_indicator.html">Authentication indicators</a></li> +<li class="toctree-l2"><a class="reference internal" href="admin_commands/index.html">Administration programs</a></li> +<li class="toctree-l2"><a class="reference internal" href="../mitK5defaults.html">MIT Kerberos defaults</a></li> +<li class="toctree-l2"><a class="reference internal" 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