centos cannot use yum solution

centos cannot use yum usually because the yum mirror is gone.

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Solution:

After installing CentOS, you generally need to modify the yum source before you can install and update the rpm A relatively ideal speed can be obtained during the packet processing. The faster ones in China include 163 source and sohu source. Here is the 163 source as an example:

cd /etc/yum.repos.d mv CentOS-Base.repo CentOS-Base.repo.backup wget http://mirrors.163.com/.help/CentOS6-Base-163.repo mv CentOS6-Base-163.repo CentOS-Base.repo yum clean all

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