[文章作者:张宴 本文版本:v1.1 最后修改:2010.02.21 转载请注明出处:http://blog.zyan.cc]

一、搭建时间同步服务器
1、编译安装ntp server
wget http://www.eecis.udel.edu/~ntp/ntp_spool/ntp4/ntp-4.2.6.tar.gz
tar zxvf ntp-4.2.6.tar.gz
cd ntp-4.2.6
./configure --prefix=/usr/local/ntp --enable-all-clocks --enable-parse-clocks
make && make install

注:如以上下载地址无法访问,请从ntp官方下载网页(http://www.ntp.org/downloads.html)寻找下载地址。

2、修改ntp.conf配置文件
vi /etc/ntp.conf

①、第一种配置:允许任何IP的客户机都可以进行时间同步
将“restrict default kod nomodify notrap nopeer noquery”这行修改成:
restrict default nomodify

配置文件示例:/etc/ntp.conf

②、第二种配置:只允许192.168.18.***网段的客户机进行时间同步
在restrict default nomodify notrap noquery(表示默认拒绝所有IP的时间同步)之后增加一行:
restrict 192.168.18.0 mask 255.255.255.0 nomodify

配置文件示例:/etc/ntp.conf

3、以守护进程启动ntpd
/usr/local/ntp/bin/ntpd -c /etc/ntp.conf -p /tmp/ntpd.pid

4、ntpd启动后,客户机要等几分钟再与其进行时间同步,否则会提示“no server suitable for synchronization found”错误。

二、配置时间同步客户机
vi /var/spool/cron/root

增加一行,在每天的5点13分、9点13分、14点13分、19点13分与时间同步服务器进行同步
13 5,9,14,19 * * * /usr/sbin/ntpdate 192.168.18.2

备注:如果客户机没有ntpdate,可以下载ntpdate.tar.gz到/usr/sbin/目录,然后解压:
wget http://blog.zyan.cc/attachment/200708/ntdate.tar.gz
cd /usr/sbin/
tar zxvf ntpdate.tar.gz


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技术大类 » 其他Unix技术 | 评论(42) | 引用(0) | 阅读(72880)
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