Centos7修改网卡固定IP地址（centos7修改网卡配置文件）

用命令ip add可看到当前网卡名称为ens192如图1-1所示

进入ens192网卡用命令：vi
/etc/sysconfig/network-scripts/ifcfg-ens192按“i”键进入编辑模式输入以下代码后按“Esc”键退出编辑模式，输入“:wq”保存退出

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="078066a8-b2a7-407a-b58a-7b2cfdef2f91"
DEVICE="ens192"
ONBOOT="yes"
IPADDR="10.18.30.247"
PREFIX="24"
GATEWAY="10.18.30.254"
DNS1="8.8.8.8"
DNS2="114.114.114.114"
IPV6_PRIVACY="no"

修改完成后输入命令：service network restart重启网卡

实验结果ping www.qq.com可通

[root@vm-77-3 ~]# ping www.qq.com
PING ins-r23tsuuf.ias.tencent-cloud.net (121.14.77.221) 56(84) bytes of data.
64 bytes from 121.14.77.221 (121.14.77.221): icmp_seq=1 ttl=52 time=7.16 ms
64 bytes from 121.14.77.221 (121.14.77.221): icmp_seq=2 ttl=52 time=7.28 ms
64 bytes from 121.14.77.221 (121.14.77.221): icmp_seq=3 ttl=52 time=7.24 ms
64 bytes from 121.14.77.221 (121.14.77.221): icmp_seq=4 ttl=52 time=6.82 ms