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diff --git a/doc/html/admin/conf_ldap.html b/doc/html/admin/conf_ldap.html new file mode 100644 index 000000000000..7cdd64dd2cb4 --- /dev/null +++ b/doc/html/admin/conf_ldap.html @@ -0,0 +1,328 @@ +<!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>Configuring Kerberos with OpenLDAP back-end — 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="Application servers" href="appl_servers.html" /> + <link rel="prev" title="Account lockout" href="lockout.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="lockout.html" title="Account lockout" + accesskey="P">previous</a> | + <a href="appl_servers.html" title="Application servers" + 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__Configuring Kerberos with OpenLDAP back-end">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="configuring-kerberos-with-openldap-back-end"> +<h1>Configuring Kerberos with OpenLDAP back-end<a class="headerlink" href="#configuring-kerberos-with-openldap-back-end" title="Permalink to this headline">ΒΆ</a></h1> +<blockquote> +<div><ol class="arabic"> +<li><p class="first">Set up SSL on the OpenLDAP server and client to ensure secure +communication when the KDC service and LDAP server are on different +machines. <tt class="docutils literal"><span class="pre">ldapi://</span></tt> can be used if the LDAP server and KDC +service are running on the same machine.</p> +<ol class="upperalpha simple"> +<li>Setting up SSL on the OpenLDAP server:</li> +</ol> +<blockquote> +<div><ol class="lowerroman"> +<li><p class="first">Get a CA certificate using OpenSSL tools</p> +</li> +<li><p class="first">Configure OpenLDAP server for using SSL/TLS</p> +<p>For the latter, you need to specify the location of CA +certificate location in <em>slapd.conf</em> file.</p> +<p>Refer to the following link for more information: +<a class="reference external" href="http://www.openldap.org/doc/admin23/tls.html">http://www.openldap.org/doc/admin23/tls.html</a></p> +</li> +</ol> +</div></blockquote> +<ol class="upperalpha" start="2"> +<li><p class="first">Setting up SSL on OpenLDAP client:</p> +<ol class="lowerroman"> +<li><p class="first">For the KDC and Admin Server, you need to do the client-side +configuration in ldap.conf. For example:</p> +<div class="highlight-python"><div class="highlight"><pre><span class="n">TLS_CACERT</span> <span class="o">/</span><span class="n">etc</span><span class="o">/</span><span class="n">openldap</span><span class="o">/</span><span class="n">certs</span><span class="o">/</span><span class="n">cacert</span><span class="o">.</span><span class="n">pem</span> +</pre></div> +</div> +</li> +</ol> +</li> +</ol> +</li> +<li><p class="first">Include the Kerberos schema file (kerberos.schema) in the +configuration file (slapd.conf) on the LDAP Server, by providing +the location where it is stored:</p> +<div class="highlight-python"><div class="highlight"><pre><span class="n">include</span> <span class="o">/</span><span class="n">etc</span><span class="o">/</span><span class="n">openldap</span><span class="o">/</span><span class="n">schema</span><span class="o">/</span><span class="n">kerberos</span><span class="o">.</span><span class="n">schema</span> +</pre></div> +</div> +</li> +<li><p class="first">Choose DNs for the <a class="reference internal" href="admin_commands/krb5kdc.html#krb5kdc-8"><em>krb5kdc</em></a> and <a class="reference internal" href="admin_commands/kadmind.html#kadmind-8"><em>kadmind</em></a> servers +to bind to the LDAP server, and create them if necessary. These DNs +will be specified with the <strong>ldap_kdc_dn</strong> and <strong>ldap_kadmind_dn</strong> +directives in <a class="reference internal" href="conf_files/kdc_conf.html#kdc-conf-5"><em>kdc.conf</em></a>; their passwords can be stashed +with “<tt class="docutils literal"><span class="pre">kdb5_ldap_util</span> <span class="pre">stashsrvpw</span></tt>” and the resulting file +specified with the <strong>ldap_service_password_file</strong> directive.</p> +</li> +<li><p class="first">Choose a DN for the global Kerberos container entry (but do not +create the entry at this time). This DN will be specified with the +<strong>ldap_kerberos_container_dn</strong> directive in <a class="reference internal" href="conf_files/kdc_conf.html#kdc-conf-5"><em>kdc.conf</em></a>. +Realm container entries will be created underneath this DN. +Principal entries may exist either underneath the realm container +(the default) or in separate trees referenced from the realm +container.</p> +</li> +<li><p class="first">Configure the LDAP server ACLs to enable the KDC and kadmin server +DNs to read and write the Kerberos data. If +<strong>disable_last_success</strong> and <strong>disable_lockout</strong> are both set to +true in the <a class="reference internal" href="conf_files/kdc_conf.html#dbmodules"><em>[dbmodules]</em></a> subsection for the realm, then the +KDC DN only requires read access to the Kerberos data.</p> +<p>Sample access control information:</p> +<div class="highlight-python"><div class="highlight"><pre>access to dn.base="" + by * read + +access to dn.base="cn=Subschema" + by * read + +access to attrs=userPassword,userPKCS12 + by self write + by * auth + +access to attrs=shadowLastChange + by self write + by * read + +# Providing access to realm container +access to dn.subtree= "cn=EXAMPLE.COM,cn=krbcontainer,dc=example,dc=com" + by dn.exact="cn=kdc-service,dc=example,dc=com" write + by dn.exact="cn=adm-service,dc=example,dc=com" write + by * none + +# Providing access to principals, if not underneath realm container +access to dn.subtree= "ou=users,dc=example,dc=com" + by dn.exact="cn=kdc-service,dc=example,dc=com" write + by dn.exact="cn=adm-service,dc=example,dc=com" write + by * none + +access to * + by * read +</pre></div> +</div> +<p>If the locations of the container and principals or the DNs of +the service objects for a realm are changed then this +information should be updated.</p> +</li> +<li><p class="first">Start the LDAP server as follows:</p> +<div class="highlight-python"><div class="highlight"><pre>slapd -h "ldapi:/// ldaps:///" +</pre></div> +</div> +</li> +<li><p class="first">Modify the <a class="reference internal" href="conf_files/kdc_conf.html#kdc-conf-5"><em>kdc.conf</em></a> file to include LDAP specific items +listed below:</p> +<div class="highlight-python"><div class="highlight"><pre>realms + database_module + +dbmodules + db_library + db_module_dir + ldap_kdc_dn + ldap_kadmind_dn + ldap_service_password_file + ldap_servers + ldap_conns_per_server +</pre></div> +</div> +</li> +<li><p class="first">Create the realm using <a class="reference internal" href="admin_commands/kdb5_ldap_util.html#kdb5-ldap-util-8"><em>kdb5_ldap_util</em></a> (see +<a class="reference internal" href="database.html#ldap-create-realm"><em>Creating a Kerberos realm</em></a>):</p> +<div class="highlight-python"><div class="highlight"><pre>kdb5_ldap_util -D cn=admin,dc=example,dc=com create -subtrees ou=users,dc=example,dc=com -r EXAMPLE.COM -s +</pre></div> +</div> +<p>Use the <strong>-subtrees</strong> option if the principals are to exist in a +separate subtree from the realm container. Before executing the +command, make sure that the subtree mentioned above +<tt class="docutils literal"><span class="pre">(ou=users,dc=example,dc=com)</span></tt> exists. If the principals will +exist underneath the realm container, omit the <strong>-subtrees</strong> option +and do not worry about creating the principal subtree.</p> +<p>For more information, refer to the section <a class="reference internal" href="database.html#ops-on-ldap"><em>Operations on the LDAP database</em></a>.</p> +<p>The realm object is created under the +<strong>ldap_kerberos_container_dn</strong> specified in the configuration file. +This operation will also create the Kerberos container, if not +present already. This will be used to store information related to +all realms.</p> +</li> +<li><p class="first">Stash the password of the service object used by the KDC and +Administration service to bind to the LDAP server using the +<a class="reference internal" href="admin_commands/kdb5_ldap_util.html#kdb5-ldap-util-8"><em>kdb5_ldap_util</em></a> <strong>stashsrvpw</strong> command (see +<a class="reference internal" href="database.html#stash-ldap"><em>Stashing service object’s password</em></a>). The object DN should be the same as +<strong>ldap_kdc_dn</strong> and <strong>ldap_kadmind_dn</strong> values specified in the +<a class="reference internal" href="conf_files/kdc_conf.html#kdc-conf-5"><em>kdc.conf</em></a> file:</p> +<div class="highlight-python"><div class="highlight"><pre>kdb5_ldap_util -D cn=admin,dc=example,dc=com stashsrvpw -f /etc/kerberos/service.keyfile cn=krbadmin,dc=example,dc=com +</pre></div> +</div> +</li> +<li><p class="first">Add <tt class="docutils literal"><span class="pre">krbPrincipalName</span></tt> to the indexes in slapd.conf to speed up +the access.</p> +</li> +</ol> +</div></blockquote> +<p>With the LDAP back end it is possible to provide aliases for principal +entries. Currently we provide no mechanism provided for creating +aliases, so it must be done by direct manipulation of the LDAP +entries.</p> +<p>An entry with aliases contains multiple values of the +<em>krbPrincipalName</em> attribute. Since LDAP attribute values are not +ordered, it is necessary to specify which principal name is canonical, +by using the <em>krbCanonicalName</em> attribute. Therefore, to create +aliases for an entry, first set the <em>krbCanonicalName</em> attribute of +the entry to the canonical principal name (which should be identical +to the pre-existing <em>krbPrincipalName</em> value), and then add additional +<em>krbPrincipalName</em> attributes for the aliases.</p> +<p>Principal aliases are only returned by the KDC when the client +requests canonicalization. Canonicalization is normally requested for +service principals; for client principals, an explicit flag is often +required (e.g., <tt class="docutils literal"><span class="pre">kinit</span> <span class="pre">-C</span></tt>) and canonicalization is only performed +for initial ticket requests.</p> +<div class="admonition seealso"> +<p class="first admonition-title">See also</p> +<p class="last"><a class="reference internal" href="advanced/ldapbackend.html#ldap-be-ubuntu"><em>LDAP backend on Ubuntu 10.4 (lucid)</em></a></p> +</div> +</div> + + + </div> + </div> + </div> + </div> + <div class="sidebar"> + <h2>On this page</h2> + <ul> +<li><a class="reference internal" href="#">Configuring Kerberos with OpenLDAP back-end</a></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 current"><a class="current reference internal" href="">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" href="env_variables.html">Environment variables</a></li> +<li class="toctree-l2"><a class="reference internal" href="troubleshoot.html">Troubleshooting</a></li> +<li class="toctree-l2"><a class="reference internal" href="advanced/index.html">Advanced topics</a></li> +<li class="toctree-l2"><a class="reference internal" href="various_envs.html">Various links</a></li> +</ul> +</li> +<li class="toctree-l1"><a class="reference internal" href="../appdev/index.html">For application developers</a></li> +<li class="toctree-l1"><a class="reference internal" href="../plugindev/index.html">For plugin module developers</a></li> +<li class="toctree-l1"><a class="reference internal" href="../build/index.html">Building Kerberos V5</a></li> +<li class="toctree-l1"><a class="reference internal" href="../basic/index.html">Kerberos V5 concepts</a></li> +<li class="toctree-l1"><a class="reference internal" href="../formats/index.html">Protocols and file formats</a></li> +<li class="toctree-l1"><a class="reference internal" href="../mitK5features.html">MIT Kerberos features</a></li> +<li class="toctree-l1"><a class="reference internal" href="../build_this.html">How to build this documentation from the source</a></li> +<li class="toctree-l1"><a class="reference internal" href="../about.html">Contributing to the MIT Kerberos Documentation</a></li> +<li class="toctree-l1"><a class="reference internal" href="../resources.html">Resources</a></li> +</ul> + + <br/> + <h4><a href="../index.html">Full Table of Contents</a></h4> + <h4>Search</h4> + <form class="search" action="../search.html" method="get"> + <input type="text" name="q" size="18" /> + <input type="submit" value="Go" /> + <input type="hidden" name="check_keywords" value="yes" /> + <input type="hidden" name="area" value="default" /> + </form> + </div> + <div class="clearer"></div> + </div> + </div> + + <div class="footer-wrapper"> + <div class="footer" > + <div class="right" ><i>Release: 1.15.1</i><br /> + © <a 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