Ntp

Supposed to sync clock at startup.

• /etc/ntp/step-tickers

ntp.halfface.se

Print a list of the peers known to the server as well as a summary of their state

ntpq -p

Verify communication with ntp server.

nc -u -z ntp.ongame.com 123

Set date from ntp server.

ntpdate -u ntp.ongame.com