搭建NTP服务器实现自动同步时间

实验环境

CentOS 6.5

NTP服务端：hello2099.com   IP：192.168.1.13

NTP客户端：hello2299.com   IP：192.168.1.14

 

# 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).

 

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

 

# Use public servers from the pool.ntp.org project.

# Please consider joining the pool (https://www.pool.ntp.org/join.html).

server 0.centos.pool.ntp.org iburst

server 1.centos.pool.ntp.org iburst

server 2.centos.pool.ntp.org iburst

server 3.centos.pool.ntp.org iburst

 

#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

# Enable public key cryptography.

#crypto

 

includefile /etc/ntp/crypto/pw

 

# Key file containing the keys and key identifiers used when operating

service ntpd start                   #启动NTP服务

netstat -anutp | grep 123       #查看NTP的端口

4.查看NTP服务状态

ntpstat                                      #查看ntp服务器有无和上层连通

ntpq -p                                      #查看ntp服务器与上层ntp服务器的状态

 

5.客户端安装NTP服务，NTP同步时间

客户端同步服务端时间成功。

 

由于虚拟机是采用桥接上网，物理机也可以同步成功。