在线同步
设置时区
- 查看当前时区
date -R
+0800 表示时间为东8区,即北京时间1
2[root@localhost /]# date -R
Sat, 14 Dec 2019 19:25:39 +0800
若显示结果为非当前时区时间,可以进行设置 - 设置当前时区
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34[root@localhost /]# tzselect
...
5) Asia
...
11) none - I want to specify the time zone using the Posix TZ format.
#? 5
...
9) China
...
17) Iraq 34) Pakistan
#? 9
Please select one of the following time zone regions.
1) Beijing Time
2) Xinjiang Time
#? 1
The following information has been given:
China
Beijing Time
Therefore TZ='Asia/Shanghai' will be used.
Local time is now: Sun Dec 8 21:07:46 CST 2019.
Universal Time is now: Sun Dec 8 13:07:46 UTC 2019.
Is the above information OK?
1) Yes
2) No
#? 1
You can make this change permanent for yourself by appending the line
TZ='Asia/Shanghai'; export TZ
to the file '.profile' in your home directory; then log out and log in again.
Here is that TZ value again, this time on standard output so that you
can use the /usr/bin/tzselect command in shell scripts:
Asia/Shanghai安装ntp服务
- 安装ntp服务命令:
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apt-get install ntp 或者 yum install ntp
ntp服务相关命令
检查ntp服务状态命令
systemctl status ntpd
启动ntp服务命令systemctl start ntpd
设置开机启动ntp服务systemctl enable ntpd
开始同步时间
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3将服务器ip时间与本地时间同步
注意:若不加上-u参数, 会出现以下提示:no server suitable for synchronization found
ntpdate -u 服务器ipntp常用服务器:
中国国家授时中心:210.72.145.44
NTP服务器(上海) :ntp.api.bz
美国:time.nist.gov
复旦:ntp.fudan.edu.cn
微软公司授时主机(美国) :time.windows.com
台警大授时中心(台湾):asia.pool.ntp.org
至此服务器时间同步完成。
离线同步
1 | # 设置时间 2019-12-14 18:00:00 |
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