配置时间服务器：ntpd
系统：redhat as4-u4
首先安装：ntp
yum -y install ntp
注意：redhat as4中是没有yum，这里的yum是我自己架设的yum repo，抱歉，不对外开放:-)
配置：
cat > /etc/ntp.conf < end
server 195.13.1.153
server 194.137.39.67
server 58.73.137.250
server 207.46.130.100
restrict 195.13.1.153 mask 255.255.255.255 nomodify notrap noquery
restrict 194.137.39.67 mask 255.255.255.255 nomodify notrap noquery
restrict 172.16.1.0 mask 255.255.255.0
driftfile /var/lib/ntp/drift
broadcastdelay 0.008
keys /etc/ntp/keys
end
启动：/etc/init.d/ntpd start