由于上海服务器时间不统一可能造成发布警告及其他问题，使用以下方案尝试解决该问题
一.时间服务器的设定
1.选定172.26.166.114作为时间服务器，对NTP配置文件/etc/ntp.conf设定如下
# Permit time synchronization with our time source, but do not
# permit the source to query or modify the service on this system.
restrict default kod nomodify notrap nopeer noquery
restrict -6 default kod nomodify notrap nopeer noquery
# Permit all access over the loopback interface. This could
# be tightened as well, but to do so would effect some of
# the administrative functions.
restrict 127.0.0.1
restrict -6 ::1
restrict 172.26.166.0 mask 255.255.255.0 nomodify
# Hosts on local network are less restricted.
#restrict 192.168.1.0 mask 255.255.255.0 nomodify notrap
…………
2.设定NPT服务重启动
service ntpd restart
3.设定NPT服务在系统引导时启动
chkconfig ntpd on
二.客户端设定
1.在需同步的服务器上使用Crontab定时更新，目前定为1天更新一次
##################################################
#time syn
##################################################
* */24 * * * root /usr/sbin/ntpdate 172.26.176.214;/sbin/hwclock -w
2.设定系统启动时同步时间，在/etc/init.d/下新建脚本文件（sysServerDate)
#!/bin/ksh
# chkconfig: 345 63 37
# description: update date to 172.26.176.214
/usr/sbin/ntpdate 172.26.176.214;/sbin/hwclock -w
3.设定同步脚本在系统引导时启动
chmod 755 sysServerDate
chkconfig sysServerDate on