CentOS 7 Network Adapter configuration detailed

For CENTOS7 users, the naming rules of the network card become very strange, so that the name of the network card with the former we are familiar with the ETH naming method is completely different, so whether it is used or look looks very inconvenient, the following I will give you a detailed explanation of how to return to the traditional naming up

for the newly installed CentOS 7 System, we can use the #:ifconfig command to view the initial configuration information of the NIC, my network card name is:eno16777736

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We then type the #:vim/etc/default/grub command on the command line to edit the environment variable values.

and in the variable Grub_cmdline_linu Join : net.ifnames=0 To disable the new naming convention

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after saving , we need to regenerate the grub configuration file and update the kernel parameters so we need to run

#grub2-mkconfig–o/etc/grub2.cfg such as

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then we have to reboot to take effect, then run #ifconfig after reboot,

you can see that the NIC name has been returned to the traditional eht0 name.

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Note: The address in the figure is automatically acquired

so that we can use the Centos7 previous version of the method to configure the network card IP and other information

If we use

#cd/etc/sysconfig/network-scripts/

#ls

you can see that there is no configuration file Information for the ifcfg-eth0 that we want at this time,

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use the #mv ifcfg-eno16777736 ifcfg-eth0 To rename the NIC configuration information, and then look at

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The Ifcfg-eth0 mate file is there.

then #vim ifcfg-eth0 into the configuration interface, modify the configuration to save

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Must be restarted to take effect, after reboot

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This allows the basic configuration of the Centos7 NIC to be completed, and then the server can be accessed remotely.

CentOS 7 Network Adapter configuration detailed