Nic fault: eth0: Error: no suitable device found: no device available to connect to system eth0

Eth0: Error: no suitable device found: no device can be connected to 'System et0'

This error is reported when you restart the NIC when you use Putty to remotely connect to the linux6.0 system:

The following error is reported:

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The Troubleshooting steps are as follows::

1: Check whether the system recognizes the corresponding NIC (no eth0 Nic exists ):

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Based on the displayed information, we can preliminarily determine that the system Nic information is faulty:

2: View information about the current MAC address:

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An extra eth1 Nic is found.

3: delete redundant MAC address information and modify the NIC configuration file:

The MAC address of the NIC is recorded in the/etc/udev/rules. d/70-persistent-net.rules file:

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Modify the NIC configuration file and save it:

/Etc/sysconfig/network-scripts/ifcfg-eth0 Nic configuration file location:

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4: restart the NIC to check whether the configuration is correct. If yes, it can be started properly:

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View the corresponding Nic information (how to find the nic ip address is normal but it is displayed as eth1, it is recommended to take effect after restart ):

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Solved the problem successfully! Hey!

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