1. 确认网卡名称
ip a #有ens开头的网卡，比如我的是ens160
2. DHCP的方式获取动态ip
vim /etc/netplan/00-installer-config.yaml
network:
ethernets:
ens160:
dhcp4: yes
addresses: []
version: 2
3. 设置静态ip
vim /etc/netplan/00-installer-config.yaml
network:
ethernets:
ens160:
dhcp4: no
addresses: [172.16.200.6/24]
optional: true
gateway4: 172.16.200.254
nameservers:
addresses: [202.96.128.86,202.96.128.166]
version: 2
4. 应用新的网卡配置信息
netplan apply
5. 测试网络连通性
ping www.baidu.com
PING www.a.shifen.com (14.215.177.39) 56(84) bytes of data.
64 bytes from 14.215.177.39 (14.215.177.39): icmp_seq=1 ttl=55 time=6.39 ms
64 bytes from 14.215.177.39 (14.215.177.39): icmp_seq=2 ttl=55 time=6.53 ms
64 bytes from 14.215.177.39 (14.215.177.39): icmp_seq=3 ttl=55 time=6.66 ms
64 bytes from 14.215.177.39 (14.215.177.39): icmp_seq=4 ttl=55 time=6.41 ms
64 bytes from 14.215.177.39 (14.215.177.39): icmp_seq=5 ttl=55 time=6.43 ms
64 bytes from 14.215.177.39 (14.215.177.39): icmp_seq=6 ttl=55 time=6.52 ms
64 bytes from 14.215.177.39 (14.215.177.39): icmp_seq=7 ttl=55 time=6.39 ms
64 bytes from 14.215.177.39 (14.215.177.39): icmp_seq=8 ttl=55 time=6.56 ms
64 bytes from 14.215.177.39 (14.215.177.39): icmp_seq=9 ttl=55 time=6.54 ms
原文：https://www.cnblogs.com/Jack1023/p/14813606.html