CentOS7 uses Alibaba Cloud's yum source

#backup

 cp /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.bak 

#Change yum to Alibaba Cloud 

cd etc/yum.repos.d/

wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo 

#install EPEL source

wget -P /etc/yum.repos.d/ http://mirrors.aliyun.com/repo/epel-7.repo  

#renew

sudo yum clean all  

sudo yum makecache  

 

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