108.1 – Maintain system time

Weight

3

Description

Candidates should be able to properly maintain the system time and synchronize the clock via NTP.

Key Knowledge Areas

• Set the system date and time.

• Set the hardware clock to the correct time in UTC.

• Configure the correct timezone.

• Basic NTP configuration using ntpd and chrony.

• Knowledge of using the pool.ntp.org service.

• Awareness of the ntpq command.

Files, Terms, and Utilities

• /usr/share/zoneinfo/

• /etc/timezone

• /etc/localtime

• /etc/ntp.conf

• /etc/chrony.conf

• date

• hwclock

• timedatectl

• ntpd

• ntpdate

• chronyc

• pool.ntp.org