CentOS7系统下修改网卡为eth0

1. 编辑网卡信息

   [[email protected]~]# cd /etc/sysconfig/network-scripts/  #进入网卡目录

   [[email protected]]# mv ifcfg-eno16777728 ifcfg-eth0  #重命名网卡名称

   [[email protected]]# cat ifcfg-eth0  #编辑网卡信息

   TYPE=Ethernet

   BOOTPROTO=static

   DEFROUTE=yes

   PEERDNS=yes

   PEERROUTES=yes

   IPV4_FAILURE_FATAL=no

   NAME=eth0  #name修改为eth0

   ONBOOT=yes

   IPADDR=192.168.56.12

   NETMASK=255.255.255.0

   GATEWAY=192.168.56.2

   DNS1=192.168.56.2
   2.修改grub

   [[email protected]~]# cat /etc/sysconfig/grub  #编辑内核信息,添加红色字段的

   GRUB_TIMEOUT=5

   GRUB_DEFAULT=saved

   GRUB_DISABLE_SUBMENU=true

   GRUB_TERMINAL_OUTPUT="console"

   GRUB_CMDLINE_LINUX="crashkernel=autorhgb net.ifnames=0 biosdevname=0 quiet"

   GRUB_DISABLE_RECOVERY="true"

   [[email protected]~]# grub2-mkconfig -o /boot/grub2/grub.cfg  #生成启动菜单

   Generatinggrub configuration file ...

   Foundlinux image: /boot/vmlinuz-3.10.0-229.el7.x86_64

   Foundinitrd image: /boot/initramfs-3.10.0-229.el7.x86_64.img

   Foundlinux image: /boot/vmlinuz-0-rescue-1100f7e6c97d4afaad2e396403ba7f61

   Foundinitrd image: /boot/initramfs-0-rescue-1100f7e6c97d4afaad2e396403ba7f61.img

   Done

   也可以在开机启动加载安装系统界面设置。
   3.验证是否修改成功

   [[email protected]~]# reboot  #必须重启系统生效

   [[email protected]~]# yum install net-tools #默认centos7不支持ifconfig 需要看装net-tools包

   [[email protected]~]# ifconfig eth0  #在次查看网卡信息

   eth0:flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500

   inet 192.168.56.12  netmask 255.255.255.0  broadcast 192.168.56.255

   inet6 fe80::20c:29ff:fe5c:7bb1  prefixlen 64 scopeid 0x20<link>

   ether 00:0c:29:5c:7b:b1  txqueuelen 1000  (Ethernet)

   RX packets 152  bytes 14503 (14.1 KiB)

   RX errors 0  dropped 0 overruns 0  frame 0

   TX packets 98  bytes 14402 (14.0 KiB)

   TX errors 0  dropped 0 overruns 0  carrier 0 collisions 0

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