-
- <para>Each configuration file shall be named in the style of
- <filename><replaceable>filename</replaceable>.conf</filename>.
- Files in <filename>/etc/</filename> override files with the
- same name in <filename>/usr/lib/</filename> and
- <filename>/run/</filename>. Files in
- <filename>/run/</filename> override files with the same name in
- <filename>/usr/lib/</filename>. Packages should install their
- configuration files in <filename>/usr/lib/</filename>. Files in
- <filename>/etc/</filename> are reserved for the local
- administrator, who may use this logic to override the
- configuration files installed by vendor packages. All
- configuration files are sorted by their filename in
- lexicographic order, regardless of which of the directories
- they reside in. If multiple files specify the same option, the
- entry in the file with the lexicographically latest name will
- be applied; entries in any <filename>logind.conf.d</filename>
- file override entries in
- <filename>/etc/systemd/logind.conf</filename>. It is
- recommended to prefix all filenames with a two-digit number and
- a dash, to simplify the ordering of the files.</para>