Solutions that CentOS cannot be networked after installation

Experienced hardships in VirtualBox installed Centos7, habitual played a day ifconfig, the results found that the command is invalid, and then after a series of checks found no ifconfig this package,

So to install a ifconfig package with Yum, it turns out that it can't be networked.

Haha, seems to be the default network card has not been configured well, and then after the following research, finally successfully networked updates.

Enter Directory first

/etc/sysconfig/network-scripts/

Use the LS command to view the NIC configuration file name (in the CENTOS7 network card is a random number, each machine card name is not the same)

Edit the file with vim

Change the last line of Onboot=no to Onboot=yes, as shown

Then restart Network:service Network restart

The test has been able to properly network