netplan网络配置@ubuntu留档

ubuntu使用netplan进行网络配置，简单又方便。

配置的时候编辑/etc/netplan 目录里的文件即可，如00-installer-config.yaml文件。

固定ip配置

network:
  ethernets:
    enp0s5:
      dhcp4: no
      addresses: [192.168.1.7/24]
      routes:
        - to: default
          via: 192.168.1.1
      nameservers:
        addresses: [114.114.114.114, 8.8.8.8]
  version: 2

dhcp配置

network:
  ethernets:
    enp0s5:
      dhcp4: true
  version: 2

wifi配置

network:
  version: 2
  renderer: NetworkManager
 
  wifis:
    wlp3s0: 
      dhcp4: true
      access-points:
        "wifiname":
           password: "wifipass" 
        "wifiname2":
           password: "password2"

修改完配置之后执行：

sudo netplan try 

如果配置有问题，会输出错误提示并退出。如果配置没有问题，就输出

Do you want to keep these settings?


Press ENTER before the timeout to accept the new configuration


Changes will revert in 105 seconds

这时候按回车就可以确认配置生效了。