2、centos7设置静态IP

1.编辑网卡信息

    vim /etc/sysconfig/network-scripts/ifcfg-ens33

   修改：

      BOOTPROTO="static"

      IPADDR=192.168.127.140

      NETMASK=255.255.255.0

      GATEWAY=192.168.127.2

 

2.设置systemctl

    systemctl stop NetworkManager

    systemctl disable NetworkManager

    systemctl restart network

 

3.一个网卡上面绑定多个IP

添加方法：

    ifconfig eth0:0 192.168.2.99 netmask 255.255.255.0

    ip addr add 192.168.2.199/24 dev eth0:0

删除方法：

    ip addr delete 192.168.2.199 dev eth0:0

 

eg:

  添加：

     ifconfig eth0:0 172.30.0.100 broadcast 172.30.255.255 netmask 255.255.0.0 up

  删除：

     ip addr delete 172.30.0.100 dev eth0:0