guide/latest/startup.html

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<div class="chapter">
<div class="titlepage"><div><div><h2 class="title">
<a name="startup"></a>Start up</h2></div></div></div>
<div class="toc"><dl class="toc">
<dt><span class="section"><a href="startup.html#startup-shutdown">Process exit</a></span></dt>
<dt><span class="section"><a href="startup.html#startup-boot">Boot start up</a></span></dt>
</dl></div>
<p>Cockpit's <code class="code">cockpit-ws</code> component is what the browser connects to
    and it typically starts on demand via
    <a class="ulink" href="https://www.freedesktop.org/wiki/Software/systemd/" target="_top"><code class="code">systemd</code></a>
    socket activation.</p>
<p>The actual <code class="code">cockpit.service</code> and <code class="code">cockpit-ws</code> process will start on
    demand when a browser accesses the <code class="code">cockpit.socket</code>,
    <a class="link" href="listen.html" title="TCP Port and Address">usually on port 9090</a>. Once a user logs in then
    a <code class="code">cockpit-bridge</code> process will be started in a Linux user login session.</p>
<p>Only systems that you connect to with your browser need to have the <code class="code">cockpit.socket</code>
    enabled. For systems that you add through host switcher the bridge is started
    via SSH on demand.</p>
<div class="section">
<div class="titlepage"><div><div><h2 class="title" style="clear: both">
<a name="startup-shutdown"></a>Process exit</h2></div></div></div>
<p>The <code class="code">cockpit-bridge</code> process will exit when the user logs out. In addition,
      after 10 minutes of inactivity, the <code class="code">cockpit-ws</code> process will exit on its own.
      The browser will automatically disconnect if it fails to hear from the
      <code class="code">cockpit-ws</code> process for 30 seconds.</p>
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<div class="section">
<div class="titlepage"><div><div><h2 class="title" style="clear: both">
<a name="startup-boot"></a>Boot start up</h2></div></div></div>
<p>To make Cockpit available by default after system boot the <code class="code">cockpit.socket</code>
      needs to be enabled:</p>
<pre class="programlisting">
$ sudo systemctl enable cockpit.socket
</pre>
<p>If you wish to not have Cockpit available by default via a browser, then the
      <code class="code">cockpit.socket</code> should be disabled:</p>
<pre class="programlisting">
$ sudo systemctl disable cockpit.socket
</pre>
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