ubuntu 22.04中配置静态IP

001、系统

root@ubuntu01:/etc/netplan# lsb_release -a
No LSB modules are available.
Distributor ID:    Ubuntu
Description:    Ubuntu 22.04.1 LTS
Release:    22.04
Codename:    jammy

002、网络模式，nat模式

003、配置静态IP，修改配置文件：/etc/netplan/01-network-manager-all.yaml（提前对文件进行备份，防止出现意外）

修改文件内容为：

network:
  version: 2
    #renderer: NetworkManager
  ethernets:
    ens32:    #配置的网卡的名称， 此处的网卡一英语虚拟机一致，可以使用ifconfig命令查看
      addresses: [192.168.74.129/24]    #配置的静态ip地址和掩码
      dhcp4: no    #关闭DHCP，如果需要打开DHCP则写yes
      optional: true
      routes:
        - to: default
          via: 192.168.74.2    #网关地址， 此处NAT模式，最后的网关为2.
      nameservers:
         addresses: [114.114.114.114]    #DNS服务器地址，多个DNS服务器地址需要用
英文

004、使配置生效

root@ubuntu01:/etc/netplan# netplan apply

005、查看IP，测试网络

root@ubuntu01:/etc/netplan# netplan apply   ## 使配置生效
root@ubuntu01:/etc/netplan# ifconfig | head     ## 查看ip
ens32: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.74.129  netmask 255.255.255.0  broadcast 192.168.74.255
        inet6 fe80::58b6:20bb:5329:19cb  prefixlen 64  scopeid 0x20<link>
        ether 00:0c:29:bf:59:5d  txqueuelen 1000  (Ethernet)
        RX packets 429  bytes 272719 (272.7 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 282  bytes 29794 (29.7 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
root@ubuntu01:/etc/netplan# ping -c 3 www.baidu.com         ## 测试网络的联通性
PING www.a.shifen.com (110.242.68.4) 56(84) bytes of data.
64 bytes from 110.242.68.4 (110.242.68.4): icmp_seq=1 ttl=128 time=15.9 ms
64 bytes from 110.242.68.4 (110.242.68.4): icmp_seq=2 ttl=128 time=13.6 ms
64 bytes from 110.242.68.4 (110.242.68.4): icmp_seq=3 ttl=128 time=12.9 ms

--- www.a.shifen.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2003ms
rtt min/avg/max/mdev = 12.916/14.147/15.924/1.287 ms
root@ubuntu01:/etc/netplan#