NTP: Difference between revisions
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= Network Time Protocol = | = Network Time Protocol = | ||
Line 8: | Line 9: | ||
=== ntpd === | === ntpd === | ||
=== ntpq === | === ntpq === | ||
[https://detailed.wordpress.com/2017/10/22/understanding-ntpq-output/ Understanding ntpq output] | |||
Query status: | Query status: | ||
ntpq -p | 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== | |||
[[chronyd]] | |||
==Ubuntu 20== | |||
timedated and friends: https://ubuntu.com/server/docs/network-ntp | |||
=HOWTO= | |||
==Check ntp server== | |||
ntpdate -q ntp.server.name | |||
=FAQ= | =FAQ= | ||
==systemd ntp equivalent== | ==systemd ntp equivalent== | ||
timedatectl status | |||
or | |||
systemctl status systemd-timesyncd.service | systemctl status systemd-timesyncd.service |
Latest revision as of 14:14, 26 June 2023
Network Time Protocol
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
systemd ntp equivalent
timedatectl status
or
systemctl status systemd-timesyncd.service