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1.进入网卡配置目录
[root@localhost ~]# cd /etc/sysconfig/network-scripts/
[root@localhost network-scripts]# ls
ifcfg-ens33
2.修改配置文件
将配置文件里面的内容修改为以下内容
[root@localhost network-scripts]# vim ifcfg-ens33
BOOTPROTO=none # 指定获得ip地址的引导协议,dhcp说明是动态获得,none是静态 NAME=ens33 # 网卡名字
DEVICE=ens33 # 设备的名字 ONBOOT=yes # 系统启动的时候激活网卡,yes表示激活,no禁用
IPADDR=192.168.44.132 # 建议ip地址不能和别人冲突 PREFIX=24 # 子网掩码 GATEWAY=192.168.44.2 #
指定网关 DNS1=114.114.114.114 # 首选dns服务器
注:IPADDR 项的ip地址可以自己指定,或者使用 ip add命令来获取当前dhcp获得的ip地址
GATEWAY 网关需要使用自己设备的网关,
2.1 如何查看默认网关:
ip route命令
[root@localhost network-scripts]# ip route default via 192.168.44.2 dev ens33
proto static metric 100 192.168.44.0/24 dev ens33 proto kernel scope link src
192.168.44.132 metric 100 [root@localhost network-scripts]#
3.刷新网络服务
centos7使用:
1.service network restart
2.ifup ens33