How to regenerate network card configuration files in Linux?

6 months ago

2 minutes

In the Linux system, you can regenerate the network card configuration file by following these steps:

Open the terminal and use the command cd /etc/sysconfig/network-scripts/ to navigate to the directory where the network interface configuration files are located.
Use the ls command to view the network configuration files in the current directory, which typically start with ifcfg-, such as ifcfg-eth0, ifcfg-eth1, etc.
Use the command rm -f ifcfg-eth0 to delete the existing network card configuration file, where ifcfg-eth0 should be replaced with the actual file name of the network card.

To recreate the network card configuration file, you can create a blank configuration file using the command sudo touch ifcfg-eth0.

Create a new network card configuration file by opening it with an editor such as vim or nano, and input the network card configuration details, such as IP address, subnet mask, and gateway.

Save and exit the editor, then restart the network service using the command service network restart or systemctl restart network.

The operation of regenerating the network card configuration file has been completed. Please be cautious during the process to avoid any interruptions to network connections or other issues.