归途[原创]
4周年后，当商资网尘埃满地[原创]
2007-8-9 13:47 | by
[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
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
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：
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：
配置文件示例：/etc/ntp.conf
3、以守护进程启动ntpd
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
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
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：
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
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：
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