[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


Tags:
技术大类 » 其他Unix技术 | 评论(42) | 引用(0) | 阅读(66615)
domini Homepage
2007-8-9 17:04
你的时间服务器没有和标准时间服务器去同步,提供的时间也就不可行了。

加入和公开时间服务器同步的配置会更好
张宴 回复于 2007-8-9 18:17
这个不用担心,ntp编译安装的时候默认已经在/etc/ntp.conf配置中增加三组标准时间服务器,每组服务器的域名(0.pool.ntp.org)下有世界各地的十多台标准时间服务器,非常强大,不会像中国国家授时中心的标准时间服务器(210.72.145.44)那样经常因为负载过大无法访问,所以无须去修改,本文中也就没有写出来。
server 0.pool.ntp.org
server 1.pool.ntp.org
server 2.pool.ntp.org

[root@zhangyan ~]# dig 0.pool.ntp.org
0.pool.ntp.org.         1598    IN      A       210.167.182.10
0.pool.ntp.org.         1598    IN      A       212.12.50.232
0.pool.ntp.org.         1598    IN      A       212.92.16.193
0.pool.ntp.org.         1598    IN      A       213.133.98.226
0.pool.ntp.org.         1598    IN      A       216.234.161.11
0.pool.ntp.org.         1598    IN      A       66.36.239.104
0.pool.ntp.org.         1598    IN      A       80.69.93.212
0.pool.ntp.org.         1598    IN      A       81.15.165.16
0.pool.ntp.org.         1598    IN      A       83.137.16.7
0.pool.ntp.org.         1598    IN      A       140.112.137.130
0.pool.ntp.org.         1598    IN      A       192.33.214.57
0.pool.ntp.org.         1598    IN      A       193.40.133.142
0.pool.ntp.org.         1598    IN      A       200.43.64.72
0.pool.ntp.org.         1598    IN      A       208.97.105.139
john
2007-9-24 15:52
我编译ntp-4.2.4p4 后,没有发现/etc/ntp.conf,奇怪了。我的系统是CentOS 5.
john
2007-9-25 14:23
编译的ntp无ntp.conf文件,需要rpm包安装。
张宴 回复于 2007-9-25 18:36
ntp.conf在源码目录内,需要自己拷贝过去。
本文中的两种配置文件,点击链接即可查看。
gregorian
2007-11-21 14:56
感觉你这样设置后,系统时间会有抖动现象,要让客户机不出现抖动,还是要使用ntpd来完成的
AWE
2008-4-30 10:29
ntp.conf在源码目录内,需要自己拷贝过去。

没有啊
AWE
2008-4-30 10:29
ntp.conf在源码目录内,需要自己拷贝过去。

没有啊
你就是老师
2008-9-11 09:08
又一个国际贸易系毕业干技术地
看来国际贸易系没前途
学习
请教
2008-10-6 22:26
你好
我想问一下,时间服务器同步上一层服务器时间,如何修改配置文件?比如我上一层时间服务器的IP 172.1.1.1
是不是只用加一行service 172.1.1.1
可是为什么我用ntpq -p不能查看到?
请高手赐教。谢谢
聚云seo Homepage
2010-1-25 10:43
好长时间没了这里了  特地来看看
策略网页游戏 Homepage
2010-2-19 18:57
呵呵  网上看到的 过来瞧瞧
007 Homepage
2010-4-19 18:37
搭建步骤看起来也不多啊。。学习下
sailing123 Email Homepage
2010-9-17 17:12
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

noquery 不是指时间同步,是指查询 ntp 服务器自身状态,阻止客户端同步是使用ignore  参数..
www.201xtop.com Homepage
2010-11-21 11:11
学习一下 收藏了 以后可能会用到
liuyuexue
2012-3-6 16:30
/usr/local/ntp/bin/ntpd -c /etc/ntp.conf -p /tmp/ntpd.pid
-bash: /usr/local/ntp/bin/ntpd: 没有那个文件或目录
为什么我执行启动的时候说没有ntpd文件呢?我看了下 那个路径下就是没有,试了好几次都是这样的,请问我哪里弄错了?
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