1. 显示网络设备的运行状态
[root@ruijie ~]$ ip link
2. 显示网络接口的网络参数
[root@ruijie ~]$ ip addr
3. 修改网卡信息–ONBOOT
[root@ruijie ~]$ vi /etc/sysconfig/network-scripts/ifcfg-eth0
ONBOOT=yes
4. 重启网络服务
[root@ruijie ~]$ systemctl restart network
5. 检测网络连通性
[root@ruijie ~]$ ping 114.114.114.114 -c 3
PING 114.114.114.114 (114.114.114.114) 56(84) bytes of data.
64 bytes from 114.114.114.114: icmp_seq=1 ttl=67 time=1.55 ms
64 bytes from 114.114.114.114: icmp_seq=2 ttl=70 time=1.47 ms
64 bytes from 114.114.114.114: icmp_seq=3 ttl=65 time=1.54 ms
3 packets transmitted, 3 received, 0% packet loss, time 2003ms
rtt min/avg/max/mdev = 1.472/1.522/1.554/0.057 ms
6. 显示网络接口的网络参数-查看当前IP
[root@ruijie ~]$ ip addr
7. 修改网卡信息–IP
[root@ruijie ~]$ vi /etc/sysconfig/network-scripts/ifcfg-eth0
IPADDR=XXX.XXX.XXX.XXX
NETMASK=255.255.255.0
GATEWAY=XXX.XXX.XXX.1
8. 重启网络服务
[root@ruijie ~]$ systemctl restart network
9. 再次检测网络连通性
[root@ruijie ~]$ ping 114.114.114.114 -c 3
PING 114.114.114.114 (114.114.114.114) 56(84) bytes of data.
64 bytes from 114.114.114.114: icmp_seq=1 ttl=67 time=1.55 ms
64 bytes from 114.114.114.114: icmp_seq=2 ttl=70 time=1.47 ms
64 bytes from 114.114.114.114: icmp_seq=3 ttl=65 time=1.54 ms
3 packets transmitted, 3 received, 0% packet loss, time 2003ms
rtt min/avg/max/mdev = 1.472/1.522/1.554/0.057 ms
10. 检测域名解析
[root@ruijie ~]$ ping baidu.com
ping: unknown host baidu.com
11. 配置域名解析
[root@ruijie ~]$ vi /etc/resolv.conf
nameserver 114.114.114.114
nameserver 8.8.8.8
12. 再次检测域名解析
[root@ruijie ~]$ ping baidu.com -c 3
PING 114.114.114.114 (114.114.114.114) 56(84) bytes of data.
64 bytes from 114.114.114.114: icmp_seq=1 ttl=67 time=1.55 ms
64 bytes from 114.114.114.114: icmp_seq=2 ttl=70 time=1.47 ms
64 bytes from 114.114.114.114: icmp_seq=3 ttl=65 time=1.54 ms
3 packets transmitted, 3 received, 0% packet loss, time 2003ms
rtt min/avg/max/mdev = 1.472/1.522/1.554/0.057 ms
13. OK!!!