1. 修改网络配置
   修改 /etc/netplan/01-network-manager-all.yaml 文件

vi /etc/netplan/01-network-manager-all.yaml

Let NetworkManager manage all devices on this system

network:
version: 2
# renderer: NetworkManager
ethernets:
enp1s0:
addresses: [10.150.154.100/22]
gateway4: 10.150.152.1
nameservers:
addresses: [114.114.114.114]

使用命令生效：
netplan apply

2.作用：修改ubuntu子网掩码 配置ip的命令方法

原文地址：https://www.cnblogs.com/itzlg/p/11047831.html