CentOS 7 中时间快了 8 小时
1.查看系统时间
1.1 timeZone显示时区
[admin@localhost ~]$ timedatectl Local time: Mon 2024-04-15 18:09:19 PDT Universal time: Tue 2024-04-16 01:09:19 UTC RTC time: Tue 2024-04-16 01:09:19 Time zone: America/Los_Angeles (PDT, -0700) NTP enabled: yes NTP synchronized: yes RTC in local TZ: no DST active: yes Last DST change: DST began at Sun 2024-03-10 01:59:59 PST Sun 2024-03-10 03:00:00 PDT Next DST change: DST ends (the clock jumps one hour backwards) at Sun 2024-11-03 01:59:59 PDT Sun 2024-11-03 01:00:00 PST
1.2 修改时区为上海
sudo timedatectl set-timezone 'Asia/Shanghai'
2.使用NTP进行时间同步
2.1 安装 NTP 服务器包
yum install -y ntp
2.2 从 NTP 公共池时间服务器选择所需的物理服务器
NTP Servers in China, cn.pool.ntp.org
(图片来源网络,侵删)
server 0.cn.pool.ntp.org server 1.cn.pool.ntp.org server 2.cn.pool.ntp.org server 3.cn.pool.ntp.org
2.3 编辑 NTP 配置文件
vi /etc/ntp.conf #在服务器时间池加上中国的 # 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 iburst server 1.centos.pool.ntp.org iburst server 2.centos.pool.ntp.org iburst server 3.centos.pool.ntp.org iburst server 0.cn.pool.ntp.org server 1.cn.pool.ntp.org server 2.cn.pool.ntp.org server 3.cn.pool.ntp.org
2.4 启动NTP
$ sudo systemctl start ntpd
2.5 设置自启
$ sudo systemctl enable ntpd
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