centos set ip and connect to the external network

1.cmd  ipconfig /all

2. vi /etc/sysconfig/network-scripts/ifcfg-eth0

DEVICE=eth0
HWADDR=00:0C:29:13:CE:8F
TYPE=Ethernet        #Network card type
UUID=9394288a-82cd-4a09-bdc8-e139726ff20b
ONBOOT=yes
NM_CONTROLLED= yes BOOTPROTO
=dhcp        #Enable address protocol --static: Static protocol --bootp protocol --dhcp protocol
IPV6INIT=no
IPADDR=192.168.2.133       #Network card IP address 
NETMASK=255.255.255.0 #Subnet mask
GATEWAY=192.168.2.1 #Default gateway

DNS1=192.168.2.1 #DNS server

3. service network restart restart the service

Reference: https://www.cnblogs.com/zengguowang/p/5492982.html