https://bgstack15.ddns.net/blog/enContents © 2022 <a href="mailto:bgstack15@gmail.com">bgstack15</a> <a rel="license" href="https://creativecommons.org/licenses/by-sa/4.0/"> <img alt="Creative Commons License BY-SA" style="border-width:0; margin-bottom:12px;" src="https://bgstack15.ddns.net/.images/l_by-sa_4.0_88x31.png"></a>Sun, 27 Feb 2022 04:05:12 GMTNikola (getnikola.com)http://blogs.law.harvard.edu/tech/rsshttps://bgstack15.ddns.net/blog/posts/2019/01/29/join-ad-domain-after-installing-sssd-without-reboot/bgstack15<h2>The problem</h2> <p>In my team's experience, we have a known issue where we had to reboot after installing the domain-joining packages (sssd and realmd primarily) before we could actually join the domain. If, you install the rpms and then without a reboot try to join the domain with realm, you get a failure.</p> <pre class="code literal-block"><span></span><code># <span class="o">/</span><span class="nv">usr</span><span class="o">/</span><span class="nv">sbin</span><span class="o">/</span><span class="nv">realm</span> <span class="nv">join</span> <span class="o">--</span><span class="nv">computer</span><span class="o">-</span><span class="nv">ou</span><span class="o">=</span><span class="s2">"</span><span class="s">OU=Linux,OU=Resources</span><span class="s2">"</span> <span class="o">--</span><span class="nv">user</span><span class="o">=</span><span class="s2">"</span><span class="s">linuxdomainjoin</span><span class="s2">"</span> <span class="s2">"</span><span class="s">ad.example.com</span><span class="s2">"</span> <span class="nb">timeout</span><span class="o">=</span><span class="mi">30</span> <span class="nv">realm</span>: <span class="nv">Couldn</span><span class="s1">'</span><span class="s">t connect to realm service: Error calling StartServiceByName for org.freedesktop.realmd: Timeout was reached</span> </code></pre> <p>You can examine the journalctl output for a little more detail.</p> <pre class="code literal-block"><span></span><code><span class="n">Jan</span><span class="w"> </span><span class="mi">14</span><span class="w"> </span><span class="mi">09</span><span class="err">:</span><span class="mi">15</span><span class="err">:</span><span class="mi">44</span><span class="w"> </span><span class="n">host73</span><span class="p">.</span><span class="n">ad</span><span class="p">.</span><span class="n">example</span><span class="p">.</span><span class="n">com</span><span class="w"> </span><span class="n">realmd</span><span class="o">[</span><span class="n">75184</span><span class="o">]</span><span class="err">:</span><span class="w"> </span><span class="n">couldn</span><span class="s1">'t claim service name on DBus bus: org.freedesktop.realmd</span> <span class="s1">Jan 14 09:15:44 host73.ad.example.com realmd[75184]: couldn'</span><span class="n">t</span><span class="w"> </span><span class="n">claim</span><span class="w"> </span><span class="n">service</span><span class="w"> </span><span class="n">name</span><span class="w"> </span><span class="k">on</span><span class="w"> </span><span class="n">DBus</span><span class="w"> </span><span class="nl">bus</span><span class="p">:</span><span class="w"> </span><span class="n">org</span><span class="p">.</span><span class="n">freedesktop</span><span class="p">.</span><span class="n">realmd</span><span class="w"></span> <span class="n">Jan</span><span class="w"> </span><span class="mi">14</span><span class="w"> </span><span class="mi">09</span><span class="err">:</span><span class="mi">16</span><span class="err">:</span><span class="mi">09</span><span class="w"> </span><span class="n">host73</span><span class="p">.</span><span class="n">ad</span><span class="p">.</span><span class="n">example</span><span class="p">.</span><span class="n">com</span><span class="w"> </span><span class="n">dbus</span><span class="o">[</span><span class="n">3222</span><span class="o">]</span><span class="err">:</span><span class="w"> </span><span class="o">[</span><span class="n">system</span><span class="o">]</span><span class="w"> </span><span class="n">Failed</span><span class="w"> </span><span class="k">to</span><span class="w"> </span><span class="n">activate</span><span class="w"> </span><span class="n">service</span><span class="w"> </span><span class="s1">'org.freedesktop.realmd'</span><span class="err">:</span><span class="w"> </span><span class="n">timed</span><span class="w"> </span><span class="k">out</span><span class="w"></span> <span class="n">Jan</span><span class="w"> </span><span class="mi">14</span><span class="w"> </span><span class="mi">09</span><span class="err">:</span><span class="mi">19</span><span class="err">:</span><span class="mi">13</span><span class="w"> </span><span class="n">host73</span><span class="p">.</span><span class="n">ad</span><span class="p">.</span><span class="n">example</span><span class="p">.</span><span class="n">com</span><span class="w"> </span><span class="n">realmd</span><span class="o">[</span><span class="n">75942</span><span class="o">]</span><span class="err">:</span><span class="w"> </span><span class="n">Loaded</span><span class="w"> </span><span class="n">settings</span><span class="w"> </span><span class="k">from</span><span class="err">:</span><span class="w"> </span><span class="o">/</span><span class="n">usr</span><span class="o">/</span><span class="n">lib64</span><span class="o">/</span><span class="n">realmd</span><span class="o">/</span><span class="n">realmd</span><span class="o">-</span><span class="n">defaults</span><span class="p">.</span><span class="n">conf</span><span class="w"> </span><span class="o">/</span><span class="n">usr</span><span class="o">/</span><span class="n">lib64</span><span class="o">/</span><span class="n">realmd</span><span class="o">/</span><span class="n">realmd</span><span class="o">-</span><span class="n">distro</span><span class="p">.</span><span class="n">conf</span><span class="w"></span> <span class="n">Jan</span><span class="w"> </span><span class="mi">14</span><span class="w"> </span><span class="mi">09</span><span class="err">:</span><span class="mi">19</span><span class="err">:</span><span class="mi">13</span><span class="w"> </span><span class="n">host73</span><span class="p">.</span><span class="n">ad</span><span class="p">.</span><span class="n">example</span><span class="p">.</span><span class="n">com</span><span class="w"> </span><span class="n">realmd</span><span class="o">[</span><span class="n">75942</span><span class="o">]</span><span class="err">:</span><span class="w"> </span><span class="n">holding</span><span class="w"> </span><span class="nl">daemon</span><span class="p">:</span><span class="w"> </span><span class="n">startup</span><span class="w"></span> <span class="n">Jan</span><span class="w"> </span><span class="mi">14</span><span class="w"> </span><span class="mi">09</span><span class="err">:</span><span class="mi">19</span><span class="err">:</span><span class="mi">13</span><span class="w"> </span><span class="n">host73</span><span class="p">.</span><span class="n">ad</span><span class="p">.</span><span class="n">example</span><span class="p">.</span><span class="n">com</span><span class="w"> </span><span class="n">realmd</span><span class="o">[</span><span class="n">75942</span><span class="o">]</span><span class="err">:</span><span class="w"> </span><span class="n">starting</span><span class="w"> </span><span class="n">service</span><span class="w"></span> <span class="n">Jan</span><span class="w"> </span><span class="mi">14</span><span class="w"> </span><span class="mi">09</span><span class="err">:</span><span class="mi">19</span><span class="err">:</span><span class="mi">13</span><span class="w"> </span><span class="n">host73</span><span class="p">.</span><span class="n">ad</span><span class="p">.</span><span class="n">example</span><span class="p">.</span><span class="n">com</span><span class="w"> </span><span class="n">realmd</span><span class="o">[</span><span class="n">75942</span><span class="o">]</span><span class="err">:</span><span class="w"> </span><span class="n">connected</span><span class="w"> </span><span class="k">to</span><span class="w"> </span><span class="n">bus</span><span class="w"></span> <span class="n">Jan</span><span class="w"> </span><span class="mi">14</span><span class="w"> </span><span class="mi">09</span><span class="err">:</span><span class="mi">19</span><span class="err">:</span><span class="mi">13</span><span class="w"> </span><span class="n">host73</span><span class="p">.</span><span class="n">ad</span><span class="p">.</span><span class="n">example</span><span class="p">.</span><span class="n">com</span><span class="w"> </span><span class="n">realmd</span><span class="o">[</span><span class="n">75942</span><span class="o">]</span><span class="err">:</span><span class="w"> </span><span class="n">released</span><span class="w"> </span><span class="nl">daemon</span><span class="p">:</span><span class="w"> </span><span class="n">startup</span><span class="w"></span> <span class="n">Jan</span><span class="w"> </span><span class="mi">14</span><span class="w"> </span><span class="mi">09</span><span class="err">:</span><span class="mi">19</span><span class="err">:</span><span class="mi">13</span><span class="w"> </span><span class="n">host73</span><span class="p">.</span><span class="n">ad</span><span class="p">.</span><span class="n">example</span><span class="p">.</span><span class="n">com</span><span class="w"> </span><span class="n">realmd</span><span class="o">[</span><span class="n">75942</span><span class="o">]</span><span class="err">:</span><span class="w"> </span><span class="n">couldn</span><span class="s1">'t claim service name on DBus bus: org.freedesktop.realmd</span> <span class="s1">Jan 14 09:19:13 host73.ad.example.com realmd[75942]: couldn'</span><span class="n">t</span><span class="w"> </span><span class="n">claim</span><span class="w"> </span><span class="n">service</span><span class="w"> </span><span class="n">name</span><span class="w"> </span><span class="k">on</span><span class="w"> </span><span class="n">DBus</span><span class="w"> </span><span class="nl">bus</span><span class="p">:</span><span class="w"> </span><span class="n">org</span><span class="p">.</span><span class="n">freedesktop</span><span class="p">.</span><span class="n">realmd</span><span class="w"></span> <span class="n">Jan</span><span class="w"> </span><span class="mi">14</span><span class="w"> </span><span class="mi">09</span><span class="err">:</span><span class="mi">20</span><span class="err">:</span><span class="mi">01</span><span class="w"> </span><span class="n">host73</span><span class="p">.</span><span class="n">ad</span><span class="p">.</span><span class="n">example</span><span class="p">.</span><span class="n">com</span><span class="w"> </span><span class="n">CROND</span><span class="o">[</span><span class="n">76060</span><span class="o">]</span><span class="err">:</span><span class="w"> </span><span class="p">(</span><span class="n">root</span><span class="p">)</span><span class="w"> </span><span class="n">CMD</span><span class="w"> </span><span class="p">(</span><span class="o">/</span><span class="n">usr</span><span class="o">/</span><span class="n">lib64</span><span class="o">/</span><span class="n">sa</span><span class="o">/</span><span class="n">sa1</span><span class="w"> </span><span class="mi">1</span><span class="w"> </span><span class="mi">1</span><span class="p">)</span><span class="w"></span> <span class="n">Jan</span><span class="w"> </span><span class="mi">14</span><span class="w"> </span><span class="mi">09</span><span class="err">:</span><span class="mi">20</span><span class="err">:</span><span class="mi">43</span><span class="w"> </span><span class="n">host73</span><span class="p">.</span><span class="n">ad</span><span class="p">.</span><span class="n">example</span><span class="p">.</span><span class="n">com</span><span class="w"> </span><span class="n">systemd</span><span class="o">[</span><span class="n">1</span><span class="o">]</span><span class="err">:</span><span class="w"> </span><span class="n">realmd</span><span class="p">.</span><span class="n">service</span><span class="w"> </span><span class="k">start</span><span class="w"> </span><span class="k">operation</span><span class="w"> </span><span class="n">timed</span><span class="w"> </span><span class="k">out</span><span class="p">.</span><span class="w"> </span><span class="n">Terminating</span><span class="p">.</span><span class="w"></span> <span class="n">Jan</span><span class="w"> </span><span class="mi">14</span><span class="w"> </span><span class="mi">09</span><span class="err">:</span><span class="mi">20</span><span class="err">:</span><span class="mi">43</span><span class="w"> </span><span class="n">host73</span><span class="p">.</span><span class="n">ad</span><span class="p">.</span><span class="n">example</span><span class="p">.</span><span class="n">com</span><span class="w"> </span><span class="n">realmd</span><span class="o">[</span><span class="n">75942</span><span class="o">]</span><span class="err">:</span><span class="w"> </span><span class="n">stopping</span><span class="w"> </span><span class="n">service</span><span class="w"></span> <span class="n">Jan</span><span class="w"> </span><span class="mi">14</span><span class="w"> </span><span class="mi">09</span><span class="err">:</span><span class="mi">20</span><span class="err">:</span><span class="mi">43</span><span class="w"> </span><span class="n">host73</span><span class="p">.</span><span class="n">ad</span><span class="p">.</span><span class="n">example</span><span class="p">.</span><span class="n">com</span><span class="w"> </span><span class="n">systemd</span><span class="o">[</span><span class="n">1</span><span class="o">]</span><span class="err">:</span><span class="w"> </span><span class="n">Failed</span><span class="w"> </span><span class="k">to</span><span class="w"> </span><span class="k">start</span><span class="w"> </span><span class="n">Realm</span><span class="w"> </span><span class="ow">and</span><span class="w"> </span><span class="k">Domain</span><span class="w"> </span><span class="n">Configuration</span><span class="p">.</span><span class="w"></span> <span class="n">Jan</span><span class="w"> </span><span class="mi">14</span><span class="w"> </span><span class="mi">09</span><span class="err">:</span><span class="mi">20</span><span class="err">:</span><span class="mi">43</span><span class="w"> </span><span class="n">host73</span><span class="p">.</span><span class="n">ad</span><span class="p">.</span><span class="n">example</span><span class="p">.</span><span class="n">com</span><span class="w"> </span><span class="n">systemd</span><span class="o">[</span><span class="n">1</span><span class="o">]</span><span class="err">:</span><span class="w"> </span><span class="n">Unit</span><span class="w"> </span><span class="n">realmd</span><span class="p">.</span><span class="n">service</span><span class="w"> </span><span class="n">entered</span><span class="w"> </span><span class="n">failed</span><span class="w"> </span><span class="k">state</span><span class="p">.</span><span class="w"></span> <span class="n">Jan</span><span class="w"> </span><span class="mi">14</span><span class="w"> </span><span class="mi">09</span><span class="err">:</span><span class="mi">20</span><span class="err">:</span><span class="mi">43</span><span class="w"> </span><span class="n">host73</span><span class="p">.</span><span class="n">ad</span><span class="p">.</span><span class="n">example</span><span class="p">.</span><span class="n">com</span><span class="w"> </span><span class="n">systemd</span><span class="o">[</span><span class="n">1</span><span class="o">]</span><span class="err">:</span><span class="w"> </span><span class="n">realmd</span><span class="p">.</span><span class="n">service</span><span class="w"> </span><span class="n">failed</span><span class="p">.</span><span class="w"></span> </code></pre> <h2>The solution</h2> <p>Just restart dbus!</p> <pre class="code literal-block"><span></span><code>sudo systemctl restart dbus </code></pre> <p><strong>WARNING!</strong> Because I haven't done a lot of reading on the dbus topic, I cannot say that this is a safe procedure if you have existing workloads. My environment was a new build, so possibly blipping services was not a problem there.</p>dbusrebootsssdsystemdhttps://bgstack15.ddns.net/blog/posts/2019/01/29/join-ad-domain-after-installing-sssd-without-reboot/Tue, 29 Jan 2019 13:33:35 GMT