Ubuntu 22.04 Server 设置静态IP

1. 查看网卡信息

当前IP 为 192.168.31.195

$ ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
    link/ether 00:15:5d:1f:78:2e brd ff:ff:ff:ff:ff:ff
    inet 192.168.31.195/24 metric 100 brd 192.168.31.255 scope global dynamic eth0
       valid_lft 973sec preferred_lft 973sec
    inet6 fe80::215:5dff:fe1f:782e/64 scope link 
       valid_lft forever preferred_lft forever

2. 修改yaml配置文件

sudo vim /etc/netplan/00-installer-config.yaml

配置模板如下

# This is the network config written by 'subiquity'
network:
  ethernets:
    eth0: # 网卡名称
      dhcp4: no #关闭ipv4动态分配ip地址
      dhcp6: no #关闭ipv6动态分配ip地址
      addresses: 
          - 192.168.31.181/24  # 设置的子网IP和子网掩码，192.168.31.200代表IP /24代表掩码255.255.255.0
      routes:
          - to : default 
            via: 192.168.31.1   # 网关
      nameservers:
          addresses:  # DNS服务器
             - 192.168.31.1
             - 114.114.114.114
  version: 2
  renderer: networkd

保存更改并关闭文件。

3.应用新的网络配置

修改好网卡配置文件后通过下面命令生效

sudo netplan apply

4.重新启动网络服务

sudo systemctl restart systemd-networkd