ubuntu20.04固定ip

1. 编辑 01-network-manager-all.yaml 文件：

1 sudo vim /etc/netplan/01-network-manager-all.yaml

加入下面内容：

 1 # Let NetworkManager manage all devices on this system
 2 network:
 3   version: 2
 4   renderer: NetworkManager
 5   ethernets:
 6     eno1:
 7       dhcp4: no
 8       dhcp6: no
 9       addresses: [172.16.21.166/24]
10       gateway4: 172.16.21.254
11       nameservers:
12         addresses: [8.8.8.8, 114.114.114.114]

eno1为网卡名。

需要指定的内容为（从上而下）ip、gateway、dns server。

2. 应用修改

1 sudo netplan apply