I'm a tree and wating for the spring!

【原创】Linux中配置NTP时间服务器

★作者:桐星豆博客   |  ★类别: Linux   |  ★发布时间: 2013-11-27 18:07   |  ★更新时间: 2013-11-27 18:21   |  ★浏览次数:1725   |  ★ 评论(0)

1、配置 /etc/ntp.conf 如下:



# For more information about this file, see the man pages
# ntp.conf(5), ntp_acc(5), ntp_auth(5), ntp_clock(5), ntp_misc(5), ntp_mon(5).

#记录上次的NTP server与上层NTP server联接所花费的时间
driftfile /var/lib/ntp/drift

# Permit time synchronization with our time source, but do not
# permit the source to query or modify the service on this system.
### restrict default kod nomodify notrap nopeer noquery
### restrict -6 default kod nomodify notrap nopeer noquery

# Permit all access over the loopback interface.  This could
# be tightened as well, but to do so would effect some of
# the administrative functions.
restrict 127.0.0.1
restrict -6 ::1

# Hosts on local network are less restricted.
#restrict 192.168.1.0 mask 255.255.255.0 nomodify notrap    #允许192.168.1.0/254子网内主机时间同步
restrict default nomodify notrap    #设置默认策略为允许任何主机进行时间同步
#restrict 192.168.0.207 mask 255.255.255.0 nomodify notrap     #只允许192.168.0.207主机时间同步

#设置此服务器同上层服务器做时间同步的IP地址
# Use public servers from the pool.ntp.org project.
# Please consider joining the pool (http://www.pool.ntp.org/join.html).
server 0.centos.pool.ntp.org
server 1.centos.pool.ntp.org
server 2.centos.pool.ntp.org

#broadcast 192.168.1.255 autokey # broadcast server
#broadcastclient   # broadcast client
#broadcast 224.0.1.1 autokey  # multicast server
#multicastclient 224.0.1.1  # multicast client
#manycastserver 239.255.254.254  # manycast server
#manycastclient 239.255.254.254 autokey # manycast client

# Undisciplined Local Clock. This is a fake driver intended for backup
# and when no outside source of synchronized time is available.
server 127.127.1.0 # local clock
fudge 127.127.1.0 stratum 8 

# Enable public key cryptography.
#crypto

includefile /etc/ntp/crypto/pw

# Key file containing the keys and key identifiers used when operating
# with symmetric key cryptography.
keys /etc/ntp/keys

# Specify the key identifiers which are trusted.
#trustedkey 4 8 42

# Specify the key identifier to use with the ntpdc utility.
#requestkey 8

# Specify the key identifier to use with the ntpq utility.
#controlkey 8

# Enable writing of statistics records.
#statistics clockstats cryptostats loopstats peerstats

 

2、NTP server的维护

❤ 添加为服务
 chkconfig --level 345 ntpd on


❤ 启动
 service ntpd start
 或
 /etc/rc.d/init.d/ntpd start

❤ 停止
 service ntpd stop
 或
 /etc/rc.d/init.d/ntpd stop


❤ 管理命令
 ntpq –p     #查看本机和上层服务器的时间同步结果
 ntptrace     #可以用來追踪某台时间服务器的时间对应关系
 ntpdate IP   #客户端要和NTP server进行时钟同步


 cat /var/log/ntp/ntp.log   #查看ntp日志

 

请尊重他人的劳动果实,转载时务必注明出处! 请尊重他人的劳动果实,转载时务必注明出处!
转载请注明:文章转载自:桐星豆博客 [http://blog.txdou.com]
本文标题:【原创】Linux中配置NTP时间服务器
本文地址:http://blog.txdou.com/article93
分享到QQ空间 分享到腾讯朋友

  • 注意:“桐星豆博客”只会以“回复”的身份出现,不会以“咨询”的身份出现在留言或评论中,凡是以“咨询”的身份出现的留言或评论均为他人盗用!
  • 本站用以回复网友评论的唯一名称是“桐星豆博客”,除此外均无效,网友不得用此名进行相应文章的评论或回复!
  • 用户言论只代表其个人观点,不代表桐星豆博客的观点或立场!
  • 非诚勿扰,请友好如实的评论,杜绝谩骂、人格攻击等一切伤人言论,请严格遵循中华人民共和国法律法规!
  • 桐星豆博客拥有最终解释权,如有网友违规,本站将有权删除或屏蔽违规评论,情节严重者账户加入黑名单、永久封IP并报司法部门严惩!
  • 您一旦参与评论本站则默认为您已经同意以上条款,否则“非诚勿扰”,谢谢合作!

您的姓名或昵称: 选填
您的E-Mail地址: ☆必填--仅站长可见
您个人网站地址: 选填 ( 如果填写,请务必加上 http:// 或 https:// 等等 )
留言内容:

验证码: 点击重新生成验证码  [ ctrl + enter ]

CopyRight © 2009-2020 by 桐星豆博客 All Rights Reserved.