Change the CentOS source

Yum is generally used in CentOS but the CentOS itself comes with yum a bit slow, at this time, need to use domestic source, I am using NetEase source

1, enter the Yum source configuration directory
Cd/etc/yum.repos.d

2, the backup system comes with the Yum source
MV Centos-base.repo CENTOS-BASE.REPO.BK
Download 163 NetEase's Yum Source:
wget Http://mirrors.163.com/.help/CentOS6-Base-163.repo

3, after updating the Yum source, perform the following command to update the Yum configuration so that the operation takes effect immediately
Yum Makecache

Change the CentOS source