L14※ubuntu 修改ip地址

1> ubuntu 18.04

① 修改配置文件/etc/network/interfaces

vim /etc/network/interfaces
    auto lo
    iface lo inet loopback

    auto eth0                  #设置自动启动eth0接口,eth0根据ifconfig中的网卡名进行更改
    iface eth0 inet static     #配置静态IP
    address 192.168.88.88      #IP地址
    netmask 255.255.255.0      #子网掩码
    gateway 192.168.88.1       #默认网关
    dns-nameservers 223.5.5.5, 180.76.76.76    #dns

② 修改DNS

vi  /etc/systemd/resolved.conf
    [Resolve]
    DNS=114.114.114.114
    DNS=8.8.8.8

systemctl restart systemd-resolved.service

③ 重启网络，使配置生效

sudo /etc/init.d/networking restart
# systemctl restart networking.service
init 6  # 重启电脑

2> 连接无线

# 查看可以使用的无线网
nmcli dev wifi
# 连接无线网
nmcli dev wifi connect essid（网络名称） password password（密码）

3> ubuntu20.04

① 修改配置文件/etc/netplan/01-network-manager-all.yaml

sudo vi /etc/netplan/01-installer-config.yaml 
    network:
      ethernets:
        enp0s25:
          addresses: [192.168.88.199/24]
          dhcp4: no
          optional: true
          gateway4: 192.168.88.1
          nameservers:
             addresses: [192.168.88.1,114.114.114.114]
      version: 2
      renderer: NetworkManager

② 使配置生效

sudo netplan apply