ubuntu20.04修改ip地址

进到netplan目录

root@lili:/etc/network# cd /etc/netplan/
root@lili:/etc/netplan# ls -l
total 4
-rw-r--r-- 1 root root 117 Oct 10 01:49 00-installer-config.yaml

编辑这个唯一的yaml文件

编辑之前的内容如下：
root@lili:/etc/netplan# cat 00-installer-config.yamlbak 
# This is the network config written by 'subiquity'
network:
  ethernets:
    ens160:
      dhcp4: true
  version: 2


编辑之后的内容如下
root@lili:/etc/netplan# cat 00-installer-config.yaml
# This is the network config written by 'subiquity'
network:
  ethernets:
    ens160:
      addresses: [192.168.36.137/24]
      optional: true
      gateway4: 192.168.36.2
      nameservers:
        addresses: [114.114.114.114] 
      dhcp4: no
  version: 2

网卡名不要复制我的，看下你自己的是ens多少

addresses:：为IP地址和子网掩码，参数为数组类型，可填写多组。192.168.36.137是我的新的ip地址

dhcp4 ：是否自动分配IP

gateway4 ：网关，可通过route -n命令查看网关

nameserver DNS服务IP

令配置生效

root@lili:/etc/netplan# netplan apply

执行命令后，该ssh界面就没有任何反应，可再打开一个新的终端查看,我的ip地址已经是192.168.36.137了

root@lili:/etc/netplan# ifconfig
ens160: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.36.137  netmask 255.255.255.0  broadcast 192.168.36.255
        inet6 fe80::20c:29ff:fedc:9fd5  prefixlen 64  scopeid 0x20<link>
        ether 00:0c:29:dc:9f:d5  txqueuelen 1000  (Ethernet)
        RX packets 87967  bytes 130692168 (130.6 MB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 3692  bytes 284297 (284.2 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
        device interrupt 40  memory 0x3fa00000-3fa20000  

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 124  bytes 10116 (10.1 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 124  bytes 10116 (10.1 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

root@lili:/etc/netplan#