#!/bin/sh

#运行环境 centos6、centos7

# NTP时间同步 服务端 客户端 自动化安装配置

#Mady by Elven

function setntp1() {

. /etc/init.d/functions

pkill ntpd

echo "时间更新……"

/usr/sbin/ntpdate ntp6.aliyun.com

[[ `echo $?` ==  ]] || { echo "安装ntp服务" ; yum install ntp -y;/usr/sbin/ntpdate ntp6.aliyun.com; }

#bakup

cp -f /etc/ntp.conf /etc/ntp.conf.$(date +"%F-%T")

echo "

#默认配置部分

driftfile /var/lib/ntp/drift

restrict default kod nomodify notrap nopeer noquery

restrict - default kod nomodify notrap nopeer noquery

restrict 127.0.0.1

restrict - ::

includefile /etc/ntp/crypto/pw

keys /etc/ntp/keys

">/etc/ntp.conf

}

function setntp2() {

echo "

# 外部NTP服务

server ntp6.aliyun.com perfer

server cn.ntp.org.cn iburst

server ntp.shu.edu.cn iburst

server s2c.time.edu.cn iburst

# server s2a.time.edu.cn iburst

# server s2m.time.edu.cn iburst

# 允许上层服务主动修改本机时间

restrict ntp6.aliyun.com nomodify notrap noquery

restrict cn.ntp.org.cn nomodify notrap noquery

# 外部时间服务器不可用时，以本地时间作为时间服务

server  127.127.1.0     # local clock

fudge   127.127.1.0 stratum

">>/etc/ntp.conf

}

function ntp_server() {

echo "

# 作为内网192.168.20.* 提供NTP服务

restrict 192.168.20.0 mask 255.255.255.0 nomodify notrap

">>/etc/ntp.conf

}

function ntp_client() {

echo '内网时间同步'

/usr/sbin/ntpdate 192.168.20.1

echo "

# 使用内网NTP服务

server 192.168.20.1 iburst

restrict 192.168.20.1 nomodify notrap noquery

# 外部时间服务器不可用时，以本地时间作为时间服务

server  127.127.1.0     # local clock

fudge   127.127.1.0 stratum

">>/etc/ntp.conf

}

function ntptest() {

# "重启NTP服务"

[[ `uname -r` == *el6* ]] &&  \

{ chkconfig ntpd on;service ntpd start; } || \

{ systemctl enable ntpd;systemctl start ntpd; }

/usr/sbin/hwclock -w

echo "NTP服务 状态检测"

sleep

netstat -upnl |grep ntpd

ntpstat

ntpq -p

}

case "$1" in

    "s")

    setntp1

    setntp2

    ntp_server

    action "NTP配置" /bin/true

    ntptest

    exit

;;

    "c")

    setntp1

    ntp_client

    action "NTP配置" /bin/true

    ntptest

    exit

;;

    "-h")

    echo "-h 帮助"

    echo "c  安装NTP、并作为内网时间同步服务器Server"

    echo "s  安装NTP、使用内网时间同步服务"

    echo "*  安装配置NTP服务 "

;;

    *)

    setntp1

    setntp2

    action "NTP配置" /bin/true

    ntptest

    exit

;;

esac