X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=man%2Fsystemd-timesyncd.service.xml;h=f4ebccd4a5bf23c00fe15c4395281dbd5c11d070;hp=3810feb660a72c14b9f5dd0475c28fa4984e33ac;hb=3f93da987961c139215d3a55fd25496310537d1b;hpb=5aded369782f28255bc6b494ca905d7acaea7a56

diff --git a/man/systemd-timesyncd.service.xml b/man/systemd-timesyncd.service.xml
index 3810feb66..f4ebccd4a 100644
--- a/man/systemd-timesyncd.service.xml
+++ b/man/systemd-timesyncd.service.xml
@@ -57,14 +57,47 @@
                 <title>Description</title>
 
                 <para><filename>systemd-timesyncd</filename> is a
-                system service that may be used to synchronize the local
-                system clock with a Network Time Protocol Server.</para>
+                system service that may be used to synchronize the
+                local system clock with a remote Network Time Protocol
+                server. It also saves the local time to disk every
+                time the clock has been synchronized and uses this to
+                possibly advance the system realtime clock on
+                subsequent reboots to ensure it
+                monotonically advances even if the system lacks a
+                battery-buffered RTC chip.</para>
+
+                <para>The NTP servers contacted are determined from
+                the global settings in
+                <citerefentry><refentrytitle>timesyncd.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
+                the per-link static settings in
+                <filename>.network</filename> files, and the per-link
+                dynamic settings received over DHCP. See
+                <citerefentry><refentrytitle>systemd.network</refentrytitle><manvolnum>5</manvolnum></citerefentry>
+                for more details.</para>
+        </refsect1>
+
+        <refsect1>
+                <title>Files</title>
+
+                <variablelist>
+                        <varlistentry>
+                                <term><filename>/var/lib/systemd/clock</filename></term>
+
+                                <listitem>
+                                        <para>This file contains the timestamp of last
+                                        successful synchronization.</para>
+                                </listitem>
+                        </varlistentry>
+                </variablelist>
         </refsect1>
 
         <refsect1>
                 <title>See Also</title>
                 <para>
                         <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
+                        <citerefentry><refentrytitle>timesyncd.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
+                        <citerefentry><refentrytitle>systemd.network</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
+                        <citerefentry><refentrytitle>systemd-networkd.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
                         <citerefentry><refentrytitle>timedatectl</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
                         <citerefentry><refentrytitle>localtime</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
                         <citerefentry project='man-pages'><refentrytitle>hwclock</refentrytitle><manvolnum>8</manvolnum></citerefentry>