NTP
From DWIKI
Network Time Protocol
Links
Software
ntpd
ntpq
Query status:
ntpq -p
Jitter: variance in latency on the network Offset: time difference between the peers or between the server and client
Which one on which OS
Centos 8
Ubuntu 20
timedated and friends: https://ubuntu.com/server/docs/network-ntp
HOWTO
Check ntp server
ntpdate -q ntp.server.name
FAQ
ntpd off by 10 minutes
try
ntpdate -b
ntpdate[26875]: no servers can be used, exiting
something is wrong :)
systemd ntp equivalent
timedatectl status
or
systemctl status systemd-timesyncd.service
