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This article is a detailed introduction to "how to solve the problem of unable to access the Internet after cloning CentOS virtual machine". The content is detailed, the steps are clear, and the details are properly handled. I hope this article "how to solve the problem of unable to access the Internet after cloning CentOS virtual machine" can help you solve your doubts. Let's go deeper and learn new knowledge together with the ideas of the small editor.

I. Description of the problem

After virtual machine cloning, due to inconsistent network card information, it is impossible to access the Internet or fails to execute the "sertice network restart" command.

[root@lyy desktop]# ifconfig //View current NIC information [root@lyy desktop]# cd /etc/sysconfig/network-scripts //Enter NIC configuration file directory [root@lyy network-scripts]# ls //View NIC information in NIC configuration file

II. Cause analysis

Because of the cloned system, the system only modified the name of the virtual machine and mac, and added a line named eth1 to the/etc/udev/rules.d/70-persistent-net.rules file

III. Solutions

1. Modify the files/etc/udev/rules.d/70-persistent-net.rules and/etc/sysconfig/network-scripts/ifcfg-eth0 so that the device names and mac addresses in the two files correspond

The copy code is as follows:

[root@lyy ~]# gedit /etc/udev/rules.d/70-persistent-net.rules /etc/sysconfig/network-scripts/ifcfg-eth0

2. Save after modification, then restart the virtual machine, check the network card information again, and find that it is normal.

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