静态ip

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# 查看网卡和子网IP
ip addr

# 查看gateway
sudo apt install net-tools
route -n

# 配置网络，配置见00-xxx.yaml文件，文件具体名字ls
cd /etc/netplan/
ls
sudo cp 00-xxx.yaml 00-xxx-bk
sudo vim 00-xxx.yaml

# 应用新网络配置
sudo netplan apply
# 测试
ping www.baidu.com

00-xxx.yaml

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network:
  ethernets:
    eth0: # 网卡名称
      addresses: [192.168.76.113/20] #子网IP地址
      dhcp4: false
      optional: true
      routes:
        - to: default
          via: 192.168.64.254 # 网关地址
      nameservers:
        addresses: [223.5.5.5,223.6.6.6] # DNS地址
  version: 2
  renderer: networkd

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network:
  ethernets:
    ens32:
      addresses:
      - 192.168.140.210/24
      gateway4: 192.168.140.254
      nameservers:
        addresses: [114.114.114.114, 8.8.8.8]
        search: []
  version: 2