逆向行驶 最爱的最残酷、最美的最虚无
Chrony是CentOS 7发行之后用来取代ntp的系统校时工具，安装设定都很简易，留个操作笔记~ 🤖🤓🤖
# 变更服务器的时区设定
sudo timedatectl set-timezone Asia/Taipei
sudo timedatectl set-ntp yes
# 安装Chrony系统校时工具
yum install -y epel-release sudo
sudo yum install -y chrony
# 更换服务器并启动该服务
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cp /etc/chrony.conf /etc/chrony.conf.bak sed -i '/pool.ntp.org/a\server time.cloudflare.com prefer\nserver time.google.com prefer\nserver clock.fmt.he.net iburst\nserver clock.nyc.he.net iburst\nserver time.nist.gov iburst\nserver 0.amazon.pool.ntp.org iburst\nserver time.stdtime.gov.tw' /etc/chrony.conf # cat /etc/chrony.conf | grep server systemctl enable chronyd && systemctl start chronyd |
# 防火墙设定
systemctl iptables stop
iptables -A INPUT -p tcp --dport 123 -j ACCEPT
iptables-save | tee /etc/sysconfig/iptables
systemctl restart iptables
# firewalld切换成下列指令
firewall-cmd --permanent --add-service=ntp
firewall-cmd --reload
# 对时
sudo chronyc -a makestep && timedatectl
# 查看与ntp server的同步状态与ntp server的时间差
sudo chronyc sources -v && timedatectl
# 显示有关系统时间的资讯
sudo chronyc tracking
# 显示同步源头的资讯
sudo chronyc sourcestats -v
ref.
- Chrony – Online Documentation
- 使用 Chrony 调校系统时间
- How to Install and Use Chrony in Linux
- How to install and configure Chrony as NTP client?
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