+
+ <refsect1>
+ <title>System manager directives</title>
+
+ <para>Directives for configuring the behaviour of the
+ systemd process.</para>
+
+ <variablelist id='systemd-directives' />
+ </refsect1>
+
+ <refsect1>
+ <title>UDEV directives</title>
+
+ <para>Directives for configuring systemd units through the
+ udev database.</para>
+
+ <variablelist id='udev-directives' />
+ </refsect1>
+
+ <refsect1>
+ <title>Journal directives</title>
+
+ <para>Directives for configuring the behaviour of the
+ journald process.</para>
+
+ <variablelist id='journal-directives' />
+ </refsect1>