driftfile      /var/lib/ntp/ntp.drift
logfile        /var/log/ntp

# Specify one or more NTP servers.
server 0.ubuntu.pool.ntp.org
server 1.ubuntu.pool.ntp.org
server 2.ubuntu.pool.ntp.org
server 3.ubuntu.pool.ntp.org

# By default, exchange time with everybody, but don't allow configuration.
restrict default kod notrap nomodify nopeer mssntp

# Local users may interrogate the ntp server more closely.
restrict 127.0.0.1