ubuntu20.04设置静态IP

一 修改配置文件

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

# This is the network config written by 'subiquity'
network:
  ethernets:
    ens33: 
      dhcp4: no    # true
      addresses: [192.168.174.108/24]
      routes:                     # ubuntu 22.04
        - to: default
          via: 192.168.174.2
      # gateway4: 192.168.174.2    # ubuntu 20.04
      nameservers:
        addresses: [202.106.0.20]
  version: 2

二 配置生效

root@k8s-master-01:~# netplan apply

三 验证IP

root@k8s-master-01:~# ip a
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: ens33: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
    link/ether 00:0c:29:0e:63:73 brd ff:ff:ff:ff:ff:ff
    inet 192.168.174.100/24 brd 192.168.174.255 scope global ens33
       valid_lft forever preferred_lft forever
    inet6 fe80::20c:29ff:fe0e:6373/64 scope link 
       valid_lft forever preferred_lft forever

四 测试网络是否正常

root@k8s-master-01:~# ping -c 2 www.baidu.com
PING www.baidu.com (110.242.68.3) 56(84) bytes of data.
64 bytes from 110.242.68.3 (110.242.68.3): icmp_seq=1 ttl=128 time=11.9 ms
64 bytes from 110.242.68.3 (110.242.68.3): icmp_seq=2 ttl=128 time=12.6 ms

--- www.baidu.com ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1002ms
rtt min/avg/max/mdev = 11.943/12.284/12.625/0.341 ms

五 参考文档

https://ubuntu.com/server/docs