[root@i158 ~]# ntpdate -u time.uuwatch.com

9 Jul 11:18:50 ntpdate[853]: no server suitable for synchronization found

[root@i158 ~]# ntpdate -d time.uuwatch.com

9 Jul 11:20:01 ntpdate[896]: ntpdate 4.2.6p5@1.2349-o Sat Nov 23 18:21:48 UTC 2013 (1)

Looking for host time.uuwatch.com and service ntp

host found : master.uc.uuwatch.com

transmit(192.168.5.211)

transmit(192.168.5.211)

transmit(192.168.5.211)

transmit(192.168.5.211)

transmit(192.168.5.211)

192.168.5.211: Server dropped: no data

server 192.168.5.211, port 123

stratum 0, precision 0, leap 00, trust 000

refid [192.168.5.211], delay 0.00000, dispersion 64.00000

transmitted 4, in filter 4

reference time: 00000000.00000000 Mon, Jan 1 1900 8:05:57.000

originate timestamp: 00000000.00000000 Mon, Jan 1 1900 8:05:57.000

transmit timestamp: d94866e4.6f1188a9 Thu, Jul 9 2015 11:20:04.433

filter delay: 0.00000 0.00000 0.00000 0.00000

0.00000 0.00000 0.00000 0.00000

filter offset: 0.000000 0.000000 0.000000 0.000000

0.000000 0.000000 0.000000 0.000000

delay 0.00000, dispersion 64.00000

offset 0.000000

9 Jul 11:20:05 ntpdate[896]: no server suitable for synchronization found

ntp配置文件只写一下的就可以==>