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--- linux:ntp [2025/03/13 13:03] – gsys
+++ linux:ntp [2026/04/05 20:27] (current) – gsys
@@ Line 19: / Line 19: @@
 timedatectl list-timezones |  egrep  -o "Europe/B.*"
 sudo timedatectl set-timezone "Europe/Berlin"
+</code>
+===== timesyncd =====
+<code>
+sudo nano /etc/systemd/timesyncd.conf
+</code>
+<code>
+[Time]
+NTP=ptbtime1.ptb.de ptbtime2.ptb.de ptbtime3.ptb.de
+</code>
+<code>
+sudo systemctl restart systemd-timesyncd
+sudo systemctl status systemd-timesyncd
 </code>
@@ Line 28: / Line 43: @@
 allow 10.1.0.0/16
 allow 192.168.1.0/24
+</code>
+restart chrony service
+<code>
+systemctl restart chronyd
+</code>
+check if new ntp server is used
+<code>
+journalctl --since -1h -u chronyd
+</code>
+==== client ====
+<code>
+chronyc activity
+chronyc 'burst 4/4'   # might interrupt services
+chronyc -N sources
 </code>