Solution: After centos6 is installed, there is no eth0 and only the loopback address

After centos6 is installed, the ifconfig command does not have the eth0 address and only the lo loopback address.

Check the eth0 address:

Obviously, the previous "no" must be changed to "yes" and then saved and exited.

Restart the network: service network restart

Then use the ifconfig command.

Here, I use commands to obtain ip addresses.

In fact, there is no need to be so troublesome. You can use ifconfig to contact the value here. Of course, there are many value methods, as long as the task can be completed.

TIPS.