Linux Install Command error (could not resolve host mirrorlist.centos.org)

This issue occurs after the virtual machine installed CENTOS7 system, using the Yum command to install the wget command (yum-y install wget), the could not resolve host appears Mirrorlist.centos.org, I see a good answer to an article

First look at whether the virtual machine has a network connection, try to ping the local IP, if the ping is directly on the network is unreachable, then the virtual machine configuration is a problem,

Open:/etc/resolv.conf file, configure DNS: Here according to the system configuration, there are some 8.8.8.8, it may be wrong here, we recommend the second way (lest the delay of time)

If not, simply remove the virtual machine's configuration network and add it from the new one:

Then after installation, the display is normal.

Linux Install Command error (could not resolve host mirrorlist.centos.org)