CentOS 7.x nic name eno16777736 change to eth0 step

CentOS 7.x System network card naming rules are redefined, may be "eno167777xx", and so on, we will change the network card name to eth0 this.

First, cd/etc/sysconfig/network-scripts/ #进入网卡配置目录

MV eno16777736 Ifcfg-eth0 #修改名称

VI eth0 #编辑

Name=eth0 #修改

Device=eth0 #修改

: wq! #保持退出

Second, Vi/etc/sysconfig/grub #编辑

Add a "net.ifnames=0 biosdevname=0" to the "grub_cmdline_linux" variable

: wq! #保存退出

Third, the operation command:grub2-mkconfig-o/boot/grub2/grub.cfg #重新生成grub配置并更新内核参数

Iv. rules for adding udev

Create a network adapter rule "70-persistent-net.rules" in the "/ETC/UDEV/RULES.D" directory and write the following statement:

subsystem== "NET", action== "Add", drivers== "? *", attr{address}== "00:0c:29:dc:dd:ad", attr{type}== "1", kernel== "eth*" , name= "Eth0"

#ATTR {address}== "00:0c:29:dc:dd:ad" is the MAC address of the NIC

Cd/etc/udev/rules.d

VI 70-persistent-net.rules #添加

subsystem== "NET", action== "Add", drivers== "? *", attr{address}== "00:0c:29:dc:dd:ad", attr{type}== "1", kernel== "eth*" , name= "Eth0"

: wq! #保存退出

Shutdown-r now #重启系统

Nic has been changed to eth0