配置IP
1.进入目录/etc/sysconfig/network-scripts/ ls看到配置文件ifcfg-网卡名称
[root@CentOS7 ~]#cd /etc/sysconfig/network-scripts/
[root@CentOS7 network-scripts]#ls
ifcfg-eth0 ifdown-post ifup-eth ifup-sit
ifcfg-eth1 ifdown-ppp ifup-ib ifup-Team
ifcfg-lo ifdown-routes ifup-ippp ifup-TeamPort
ifdown ifdown-sit ifup-ipv6 ifup-tunnel
ifdown-bnep ifdown-Team ifup-isdn ifup-wireless
ifdown-eth ifdown-TeamPort ifup-plip init.ipv6-global
ifdown-ib ifdown-tunnel ifup-plusb network-functions
ifdown-ippp ifup ifup-post network-functions-ipv6
ifdown-ipv6 ifup-aliases ifup-ppp
ifdown-isdn ifup-bnep ifup-routes
[root@CentOS7 network-scripts]#
2.编辑
ifcfg-eth0为本地IP
[root@CentOS7 network-scripts]#vim ifcfg-eth0
BOOTPROTO=static #设置网卡状态为静态 dhcp为自动获取
NAME=eth0 #网卡描述
DEVICE=eth0 #标明对那个网卡设置
ONBOOT=yes #开机自动启动
IPADDR=192.168.50.7 #ip地址
GATEWAY=192.168.50.1 #网关
NETMASK=255.255.255.0 #子网掩码
wq #保存退出
ifcfg-eth1为桥接IP 这里我是DHCP自动获取
[root@CentOS7 network-scripts]#vim ifcfg-eth1
DEVICE=eth1 #标明对那个网卡设置
NAME=eth1 #网卡描述
ONBOOT=yes #开机自动启动
BOOTPROTO=dhcp #自动获取
#IPADDR=172.18.133.223 #因为自动获取注释掉了
#GATEWAY=172.18.0.1 #同上
#NETMASK=255.255.0.0 #同上
wq #保存退出
3.重启网络服务
centos6
[root@CentOS6 ~]#service network restart
centos7
[root@CentOS7 ~]#systemctl restart network