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diff --git a/man/systemd-journald.socket.html b/man/systemd-journald.socket.html index 2ea10eddef..ba9feef454 100644 --- a/man/systemd-journald.socket.html +++ b/man/systemd-journald.socket.html @@ -19,7 +19,7 @@ <a href="systemd.directives.html">Directives </a>· <a href="../python-systemd/index.html">Python </a>· <a href="../libudev/index.html">libudev </a>· - <a href="../libudev/index.html">gudev </a><span style="float:right">systemd 204</span><hr><div class="refentry"><a name="systemd-journald.service"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>systemd-journald.service, systemd-journald.socket, systemd-journald — Journal service</p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><p><code class="filename">systemd-journald.service</code></p><p><code class="filename">systemd-journald.socket</code></p><p><code class="filename">/usr/lib/systemd/systemd-journald</code></p></div><div class="refsect1"><a name="idm259777157632"></a><h2 id="Description">Description<a class="headerlink" title="Permalink to this headline" href="#Description">¶</a></h2><p><code class="filename">systemd-journald</code> is a + <a href="../libudev/index.html">gudev </a><span style="float:right">systemd 208</span><hr><div class="refentry"><a name="systemd-journald.service"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>systemd-journald.service, systemd-journald.socket, systemd-journald — Journal service</p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><p><code class="filename">systemd-journald.service</code></p><p><code class="filename">systemd-journald.socket</code></p><p><code class="filename">/usr/lib/systemd/systemd-journald</code></p></div><div class="refsect1"><a name="idm274689768352"></a><h2 id="Description">Description<a class="headerlink" title="Permalink to this headline" href="#Description">¶</a></h2><p><code class="filename">systemd-journald</code> is a system service that collects and stores logging data. It creates and maintains structured, indexed journals based on logging information that is received @@ -32,24 +32,24 @@ <a href="systemd.journal-fields.html"><span class="citerefentry"><span class="refentrytitle">systemd.journal-fields</span>(7)</span></a> for more information about the collected meta data. </p><p>Log data collected by the journal is primarily - text based but can also include binary data where + text-based but can also include binary data where necessary. All objects stored in the journal can be up - to 2^64-1 bytes in size.</p><p>By default the journal stores log data in + to 2^64-1 bytes in size.</p><p>By default, the journal stores log data in <code class="filename">/run/log/journal/</code>. Since - <code class="filename">/run/</code> is volatile log data is - lost at reboot. To make the data persistent it + <code class="filename">/run/</code> is volatile, log data is + lost at reboot. To make the data persistent, it is sufficient to create <code class="filename">/var/log/journal/</code> where <code class="filename">systemd-journald</code> will then store the data.</p><p><code class="filename">systemd-journald</code> will - forward all received log messages to the AF_UNIX - SOCK_DGRAM socket - <code class="filename">/run/systemd/journal/syslog</code> (if it exists) which - may be used by UNIX syslog daemons to process the data + forward all received log messages to the <code class="constant">AF_UNIX</code> + <code class="constant">SOCK_DGRAM</code> socket + <code class="filename">/run/systemd/journal/syslog</code>, if it exists, which + may be used by Unix syslog daemons to process the data further.</p><p>See <a href="journald.conf.html"><span class="citerefentry"><span class="refentrytitle">journald.conf</span>(5)</span></a> for information about the configuration of this - service.</p></div><div class="refsect1"><a name="idm259777146368"></a><h2 id="Signals">Signals<a class="headerlink" title="Permalink to this headline" href="#Signals">¶</a></h2><div class="variablelist"><dl class="variablelist"><dt id="SIGUSR1"><span class="term">SIGUSR1</span><a class="headerlink" title="Permalink to this term" href="#SIGUSR1">¶</a></dt><dd><p>Request that journal + service.</p></div><div class="refsect1"><a name="idm274689756352"></a><h2 id="Signals">Signals<a class="headerlink" title="Permalink to this headline" href="#Signals">¶</a></h2><div class="variablelist"><dl class="variablelist"><dt id="SIGUSR1"><span class="term">SIGUSR1</span><a class="headerlink" title="Permalink to this term" href="#SIGUSR1">¶</a></dt><dd><p>Request that journal data from <code class="filename">/run/</code> is flushed to <code class="filename">/var/</code> in order to @@ -62,7 +62,7 @@ regardless of the configuration.</p></dd><dt id="SIGUSR2"><span class="term">SIGUSR2</span><a class="headerlink" title="Permalink to this term" href="#SIGUSR2">¶</a></dt><dd><p>Request immediate rotation of the journal - files.</p></dd></dl></div></div><div class="refsect1"><a name="idm259780805344"></a><h2 id="Kernel Command Line">Kernel Command Line<a class="headerlink" title="Permalink to this headline" href="#Kernel%20Command%20Line">¶</a></h2><p>A few configuration parameters from + files.</p></dd></dl></div></div><div class="refsect1"><a name="idm274693702112"></a><h2 id="Kernel Command Line">Kernel Command Line<a class="headerlink" title="Permalink to this headline" href="#Kernel%20Command%20Line">¶</a></h2><p>A few configuration parameters from <code class="filename">journald.conf</code> may be overridden on the kernel command line:</p><div class="variablelist"><dl class="variablelist"><dt id="systemd.journald.forward_to_syslog="><span class="term"><code class="varname">systemd.journald.forward_to_syslog=</code>, </span><span class="term"><code class="varname">systemd.journald.forward_to_kmsg=</code>, </span><span class="term"><code class="varname">systemd.journald.forward_to_console=</code></span><a class="headerlink" title="Permalink to this term" href="#systemd.journald.forward_to_syslog=">¶</a></dt><dd><p>Enables/disables forwarding of collected log messages @@ -70,30 +70,56 @@ the system console. </p><p>See <a href="journald.conf.html"><span class="citerefentry"><span class="refentrytitle">journald.conf</span>(5)</span></a> - for information about these settings.</p></dd></dl></div></div><div class="refsect1"><a name="idm259780798608"></a><h2 id="Access Control">Access Control<a class="headerlink" title="Permalink to this headline" href="#Access%20Control">¶</a></h2><p>Journal files are by default owned and readable - by the <code class="literal">systemd-journal</code> system group - (but not writable). Adding a user to this group thus + for information about these settings.</p></dd></dl></div></div><div class="refsect1"><a name="idm274693695376"></a><h2 id="Access Control">Access Control<a class="headerlink" title="Permalink to this headline" href="#Access%20Control">¶</a></h2><p>Journal files are, by default, owned and readable + by the "<code class="literal">systemd-journal</code>" system group + but are not writable. Adding a user to this group thus enables her/him to read the journal files.</p><p>By default, each logged in user will get her/his own set of journal files in <code class="filename">/var/log/journal/</code>. These files - will not be owned by the user however, in order to + will not be owned by the user, however, in order to avoid that the user can write to them directly. Instead, file system ACLs are used to ensure the user gets read access only.</p><p>Additional users and groups may be granted access to journal files via file system access control lists (ACL). Distributions and administrators may choose to grant read access to all members of the - <code class="literal">wheel</code> and <code class="literal">adm</code> + "<code class="literal">wheel</code>" and "<code class="literal">adm</code>" system groups with a command such as the following:</p><pre class="programlisting"># setfacl -Rnm g:wheel:rx,d:g:wheel:rx,g:adm:rx,d:g:adm:rx /var/log/journal/</pre><p>Note that this command will update the ACLs both for existing journal files and for future journal files created in the <code class="filename">/var/log/journal/</code> - directory.</p></div><div class="refsect1"><a name="idm259780783648"></a><h2 id="See Also">See Also<a class="headerlink" title="Permalink to this headline" href="#See%20Also">¶</a></h2><p> + directory.</p></div><div class="refsect1"><a name="idm274693680544"></a><h2 id="Files">Files<a class="headerlink" title="Permalink to this headline" href="#Files">¶</a></h2><div class="variablelist"><dl class="variablelist"><dt id="/etc/systemd/journald.conf"><span class="term"><code class="filename">/etc/systemd/journald.conf</code></span><a class="headerlink" title="Permalink to this term" href="#/etc/systemd/journald.conf">¶</a></dt><dd><p>Configure + <span class="command"><strong>systemd-journald</strong></span> + behaviour. See + <a href="journald.conf.html"><span class="citerefentry"><span class="refentrytitle">journald.conf</span>(5)</span></a>. + </p></dd><dt id="/run/log/journal/machine-id/*.journal"><span class="term"><code class="filename">/run/log/journal/<em class="replaceable"><code>machine-id</code></em>/*.journal</code>, </span><span class="term"><code class="filename">/run/log/journal/<em class="replaceable"><code>machine-id</code></em>/*.journal~</code>, </span><span class="term"><code class="filename">/var/log/journal/<em class="replaceable"><code>machine-id</code></em>/*.journal</code>, </span><span class="term"><code class="filename">/var/log/journal/<em class="replaceable"><code>machine-id</code></em>/*.journal~</code></span><a class="headerlink" title="Permalink to this term" href="#/run/log/journal/machine-id/*.journal">¶</a></dt><dd><p><span class="command"><strong>systemd-journald</strong></span> + writes entries to files in + <code class="filename">/run/log/journal/<em class="replaceable"><code>machine-id</code></em>/</code> + or + <code class="filename">/var/log/journal/<em class="replaceable"><code>machine-id</code></em>/</code> + with the "<code class="literal">.journal</code>" + suffix. If the daemon is stopped + uncleanly, or if the files are found + to be corrupted, they are renamed + using the "<code class="literal">.journal~</code>" + suffix, and + <span class="command"><strong>systemd-journald</strong></span> + starts writing to a new + file. <code class="filename">/run</code> is + used when + <code class="filename">/var/log/journal</code> + is not available, or when + <code class="option">Storage=volatile</code> is + set in the + <a href="journald.conf.html"><span class="citerefentry"><span class="refentrytitle">journald.conf</span>(5)</span></a> + configuration file. + </p></dd></dl></div></div><div class="refsect1"><a name="idm274693661840"></a><h2 id="See Also">See Also<a class="headerlink" title="Permalink to this headline" href="#See%20Also">¶</a></h2><p> <a href="systemd.html"><span class="citerefentry"><span class="refentrytitle">systemd</span>(1)</span></a>, <a href="journalctl.html"><span class="citerefentry"><span class="refentrytitle">journalctl</span>(1)</span></a>, <a href="journald.conf.html"><span class="citerefentry"><span class="refentrytitle">journald.conf</span>(5)</span></a>, <a href="systemd.journal-fields.html"><span class="citerefentry"><span class="refentrytitle">systemd.journal-fields</span>(7)</span></a>, <a href="sd-journal.html"><span class="citerefentry"><span class="refentrytitle">sd-journal</span>(3)</span></a>, - <a href="setfacl.html"><span class="citerefentry"><span class="refentrytitle">setfacl</span>(1)</span></a> + <a href="setfacl.html"><span class="citerefentry"><span class="refentrytitle">setfacl</span>(1)</span></a>, + <span class="command"><strong>pydoc systemd.journal</strong></span>. </p></div></div></body></html> |