centos 设置ntp
时间: 2023-10-13 20:07:50 浏览: 46
要在CentOS系统中设置NTP,请按照以下步骤操作:
1. 确认是否已安装ntp包。如果未安装,请使用以下命令安装:
```
sudo yum install ntp
```
2. 编辑NTP配置文件`/etc/ntp.conf`,并添加NTP服务器的地址。例如,要使用中国的NTP服务器,可以添加以下行:
```
server ntp.aliyun.com iburst
```
3. 启动NTP服务并设置开机自启:
```
sudo systemctl start ntpd
sudo systemctl enable ntpd
```
4. 确认NTP服务是否正在运行:
```
sudo systemctl status ntpd
```
如果服务正在运行,则输出应该如下所示:
```
● ntpd.service - Network Time Service
Loaded: loaded (/usr/lib/systemd/system/ntpd.service; enabled; vendor preset: disabled)
Active: active (running) since Wed 2021-07-21 13:53:19 CST; 1 weeks 3 days ago
Main PID: 1082 (ntpd)
Status: "synchronized to 139.224.244.82 (139.224.244.82)"
Tasks: 2
Memory: 2.0M
CPU: 32ms
CGroup: /system.slice/ntpd.service
└─1082 /usr/sbin/ntpd -u ntp:ntp -g
Jul 21 13:53:19 centos systemd[1]: Starting Network Time Service...
Jul 21 13:53:19 centos ntpd[1082]: ntpd 4.2.6p5@1.2349-o Wed Jul 28 18:13:42 UTC 2021 (1)
Jul 21 13:53:19 centos ntpd[1082]: proto: precision = 0.046 usec
Jul 21 13:53:19 centos ntpd[1082]: Listen and drop on 0 v6wildcard [::]:123
Jul 21 13:53:19 centos ntpd[1082]: Listen and drop on 1 v4wildcard 0.0.0.0:123
Jul 21 13:53:19 centos ntpd[1082]: Listen normally on 2 lo 127.0.0.1:123
Jul 21 13:53:19 centos ntpd[1082]: Listen normally on 3 eth0 192.168.0.100:123
Jul 21 13:53:19 centos ntpd[1082]: Listen normally on 4 lo [::1]:123
Jul 21 13:53:19 centos ntpd[1082]: Listen normally on 5 eth0 [fe80::20c:29ff:fe67:7b73%2]:123
Jul 21 13:53:19 centos ntpd[1082]: Listening on routing socket on fd #22 for interface updates
Jul 21 13:53:19 centos systemd[1]: Started Network Time Service.
```
现在,您的CentOS系统已经配置好了NTP,可以自动同步时间。