vim /etc/sysconfig/network-scripts/ifcfg-ens33
TYPE=Ethernet
PROXY_METHOD=none
BROWSER_ONLY=no
BOOTPROTO=static
DEFROUTE=yes
IPV4_FAILURE_FATAL=no
IPV6INIT=yes
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_FAILURE_FATAL=no
IPV6_ADDR_GEN_MODE=stable-privacy
NAME=ens33
UUID=264b7491-942f-44b6-9150-16f0b3ffcaf7
DEVICE=ens33
ONBOOT=yes
IPADDR=192.168.100.3
GATEWAY=192.168.100.254
/etc/resolv.conf
nameserver 192.168.100.254