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====== NTP ======

===== Befehle =====

<code bash>
rcntp ntptimeset     #Zeit mit NTP-Server synchroniseren (SLES legacy)
ntpq -p              #show peers
timedatectl
sudo timedatectl set-ntp true
sudo timedatectl set-local-rtc 0
systemctl status systemd-timesyncd
sudo systemctl restart systemd-timesyncd
</code>

===== Zeitzone setzen =====

<code bash>
timedatectl  status
timedatectl list-timezones |  egrep  -o "Europe/B.*"
sudo timedatectl set-timezone "Europe/Berlin"
</code>

===== chrony =====

''chrony.conf''
<code>
server 192.168.1.1
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 chrony
</code>
==== client ====
<code>
chronyc activity
chronyc 'burst 4/4'   # might interrupt services
chronyc -N sources
</code>