ubuntu18.04/20.04使用netplan设置网络

1. 使用NetworkManager- ubuntu默认设置

network:
    version: 2
    renderer: NetworkManager

2. 配置dhcp自动获取ip

vim /etc/netplan/50-cloud-init.yaml 

配置如下：

network:
    version: 2 
    ethernets:
         enp3s0:
         optional: yes
    

3. 配置静态IP

enp3s0 为ifconfig显示的网络设备名。

network:
    ethernets:
        enp3s0:
            addresses: [192.168.0.20/24]  //IP址
            gateway4: 192.168.0.1  // 网关
            nameservers:
                addresses: [114.114.114.114, 192.168.0.1] //DNS
            dhcp4: no
            optional: no
    version: 2

4. 测试配置

sudo netplan try

5. 应用配置

sudo netplan apply