Create the file ntp.conf:

	# vi /etc/inet/ntp.conf

	restrict -4 default kod notrap nomodify nopeer noquery
	restrict -6 default kod notrap nomodify nopeer noquery

	restrict 127.0.0.1
	server 222.222.222.222 # IP of the other NTP
	server 221.212.212.212 # additional

	driftfile /etc/ntp.drift

Create the file /etc/ntp.drift with 0.0 entry:

	# touch /etc/ntp.drift
	# echo 0.0 > /etc/ntp.drift

Enable ntp:

	# svcadm enable ntp

Verify ntp:

	# svcs -xv ntp

	svc:/network/ntp:default (Network Time Protocol (NTP))
	 State: online since Wed Dec 15 16:11:17 2010
	   See: man -M /usr/share/man -s 1M xntpd
	   See: man -M /usr/share/man -s 1M ntpdate
	   See: man -M /usr/share/man -s 1M ntpq
	   See: /var/svc/log/network-ntp:default.log
	Impact: None.

	# ntpq -pn

		 remote           refid      st t when poll reach   delay   offset    disp
	==============================================================================
	*222.222.222.222     202.92.144.50    4 u  468 1024  377     1.14    1.092   27.89
	+221.212.212.212     115.139.9.150    2 u   10   64  377     0.85    2.257    7.75