1. 配置ntp server
[root etc]#cat /etc/ntp.conf
broadcastclient
keys /etc/ntp/keys
trustedkey 1
2. 配置密钥
[root etc]#cat /etc/ntp/keys
1 M ntpmm!com
3. 重启ntpd服务
[root etc]#stopsrc -s xntpd
0513-044 The /usr/sbin/xntpd Subsystem was requested to stop.
[root etc]#startsrc -s xntpd
0513-059 The xntpd Subsystem has been started. Subsystem PID is 1912936.
//客户端验证
[root etc]#ntpdate -a 1 -k /etc/ntp/keys -q 192.168.6.3