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Enter the network card configuration directory
[root@178-119-30-16 ~]# cd /etc/sysconfig/network-scripts/
[root@178-119-30-16 network-scripts]# ls
ifcfg-ens192 ifdown ifdown-ippp ifdown-post ifdown-sit ifdown-tunnel ifup-bnep ifup-ipv6 ifup-plusb ifup-routes ifup-TeamPort init.ipv6-global
ifcfg-ens192.bak ifdown-bnep ifdown-ipv6 ifdown-ppp ifdown-Team ifup ifup-eth ifup-isdn ifup-post ifup-sit ifup-tunnel network-functions
ifcfg-lo ifdown-eth ifdown-isdn ifdown-routes ifdown-TeamPort ifup-aliases ifup-ippp ifup-plip ifup-ppp ifup-Team ifup-wireless network-functions-ipv6
Modify the configuration file of the corresponding network card
ifcfg-enss192: if: interface interface, cfg:config configuration, ens192 is the name of the specific interface.
ifcfg-lo: configuration lookback of loopback interface
One network card corresponds to one configuration file.
TYPE="Ethernet"
PROXY_METHOD="none"
BROWSER_ONLY="no"
BOOTPROTO="none"
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="ens192"
UUID="f21fcac4-19df-46a6-890a-a75e4a42763c"
DEVICE="ens192"
ONBOOT="yes"
IPADDR="178.119.30.16"
PREFIX="24"
GATEWAY="178.119.30.1"
DNS1="114.114.114.114"
IPV6_PRIVACY="no"
Restart the service for the new configuration to take effect
[root@178-119-30-16 network-scripts]# service network restart
Restarting network (via systemctl): [ OK ]
