CentOS7修改网卡为eth0

• 1.编辑网卡信息

  [root@linux-node2~]# cd /etc/sysconfig/network-scripts/  #进入网卡目录

  [root@linux-node2network-scripts]# mv ifcfg-eno16777728 ifcfg-eth0  #重命名网卡名称

  [root@linux-node2 network-scripts]# 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

  [root@linux-node2 ~]# 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=auto rhgb net.ifnames=0 biosdevname=0 quiet”

  GRUB_DISABLE_RECOVERY=”true”

  [root@linux-node2 ~]# grub2-mkconfig -o /boot/grub2/grub.cfg  #生成启动菜单

  Generating
  grub configuration file …

  Found
  linux image: /boot/vmlinuz-3.10.0-229.el7.x86_64

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

  Found
  linux image: /boot/vmlinuz-0-rescue-1100f7e6c97d4afaad2e396403ba7f61

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

  Done

  3.验证是否修改成功

  [root@linux-node2 ~]# reboot  #必须重启系统生效

  [root@linux-node2 ~]# yum install net-tools  #默认centos7不支持ifconfig 需要看装net-tools包

  [root@linux-node2 ~]# 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