NTP Service Setup

1: Experimental environment

Prerequisites: Virtual machine environment, Windows client, shutdown firewall, linux Server shut down firewall, turn off SELinux.

Cent OS:NTP Server ip:192.168.80.134/255.255.255.0

Windows 7: Client ip:192.168.80.133/255.255.255.0

2:NTP Service Installation

① generally comes with:

1 grep NTP 2 ntp-4.2. 6p5-1. el6.centos.x86_643 fontpackages-filesystem-1.41 -1.1. El6.noarch4 ntpdate-4.2. 6p5-1. el6.centos.x86_ 64

② if not, this installation

㈠RPM Installation:

RPM-IVH ntp-*.rpm

Unloading:

Rpm-e ntp-*.rpm

㈡yum Installation

Yum-y Install ntp.i*

Unloading:

Yum-y Remove ntp.i*

3: Service configuration:

①: vi/etc/ntp.conf

1Restrict 192.168.80.0 mask 255.255.255.0 nomodify notrap2 3 # Use public servers from the pool.ntp.org project.4# Consider joining the pool (http://www.pool.ntp.org/join.html).5#server0. centos.pool.ntp.org Iburst6#server1. centos.pool.ntp.org Iburst7#server2. centos.pool.ntp.org Iburst8#server3. centos.pool.ntp.org Iburst9 Server asia.pool.ntp.org

1 /etc/rc.d/init.d/ntpd start

1 chkconfig ntpd on

②: Change the time zone:

Tzselect:

Execute the tzselect command--Select asia--> Select china--> Select East China-beijing, Guangdong, Shanghai, etc--> and enter 1;

Execute tz= ' Asia/shanghai '; Export TZ and add this line of command to the. Profile, then exit and log back in.

Reference: http://jingyan.baidu.com/article/fa4125acb7328628ac70920e.html

③ Manual Update:

Ntpdate asia.pool.ntp.org

④ View the synchronization of this machine with the upper NTP server:

Ntpq-p

At this point: the NTP itself is synchronized properly and then set the client

⑤ Change the IP address of the Windows Synchronization server to the NTP server IP that was built, and update the time immediately.

Finally: The simple construction of the NTP server, the implementation of the basic functions.

NTP Service Setup