1. ip configuration file ifcfg-ensxxx
cd /etc/sysconfig/network-scripts/
There are ifcfg-ensxxx files in the network-scripts/ directory
2. The vi command opens the configuration file
. Modify:
BOOTPROTO="static" # Use a static IP address, the default is dhcp
ONBOOT="yes" # Whether to enable it on boot
Add or modify ip address, subnet mask, gateway, DNS server (optional) according to your needs:
IPADDR=0.0.0.0 # ip address
GATEWAY=0.0.0.0 # gateway
NETMASK=255.255.255.0 # subnet mask
DNS1=0.0.0.0 # DNS server
3. Restart the network or restart the system
重启网络：service network restart
重启系统：reboot