##
##	ntp.conf
##
driftfile	/etc/ntp/drift
server		133.40.40.133	# cesium.mtk.nao.ac.jp
server		130.69.251.23	# ntp.nc.u-tokyo.ac.jp

[root@www root]# /etc/rc.d/init.d/ntpd start
[root@www root]# ntpq -p
     remote	      refid	 st t when poll reach	delay	offset	jitter
==============================================================================
 133.40.40.133	 0.0.0.0	 16 -	 - 1024    0	0.000	 0.000 4000.00
*ntp.nc.u-tokyo. .GPS.		  1 -  543 1024  377   19.739	-2.036	 1.102

# ntpdate NTP
# hwclock --systohc