linux时间同步服务器

服务的名称 : chronyd

在服务端:
vim /etc/chrony.conf
删除以下代码的注释
22 allow 172.25.36.0/24 #允许哪些客户端来同步本机的时间
29 local stratum 10 #本机不同步任何主机的时间，本机作为时间源

systemctl restart chronyd.service
timedatectl set-timezone Asia/Shanghai #更改当前时区

在客户端:
vim /etc/chrony.conf
3 server 172.25.35.86 #本机同步172.25.35.86主机的时间

timedatectl set-timezone Asia/Shanghai #同步当前时区

/etc/chrony.conf修改好后如下图

Screenshot from 2019-01-13 14-46-36.png

测试：
在客户端：

[root@desktop ~]# chronyc sources -v
210 Number of sources = 1

  .-- Source mode  '^' = server, '=' = peer, '#' = local clock.
 / .- Source state '*' = current synced, '+' = combined , '-' = not combined,
| /   '?' = unreachable, 'x' = time may be in error, '~' = time too variable.
||                                                 .- xxxx [ yyyy ] +/- zzzz
||                                                /   xxxx = adjusted offset,
||         Log2(Polling interval) -.             |    yyyy = measured offset,
||                                  \            |    zzzz = estimated error.
||                                   |           |
MS Name/IP address         Stratum Poll Reach LastRx Last sample
===============================================================================
^* 172.25.36.86                 10   6    17    13  -2994ns[  -46us] +/- 1166us