Domestic excellent source:
1.http://mirrors.163.com/
2.http://mirrors.aliyun.com/
Centos 7 install yum management tool
rpm -ivh --nodeps http://mirrors.163.com/centos/7/os/x86_64/Packages/yum-3.4.3-150.el7.centos.noarch.rpm
rpm -ivh --nodeps http://mirrors.163.com/centos/7/os/x86_64/Packages/yum-metadata-parser-1.1.4-10.el7.x86_64.rpm
rpm -ivh --nodeps http://mirrors.163.com/centos/7/os/x86_64/Packages/yum-plugin-fastestmirror-1.1.31-40.el7.noarch.rpm
Centos 7 replace default source
1. First backup /etc/yum.repos.d/CentOS-Base.repo
2. Replace wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.163.com/.help/CentOS7-Base-163.repo
3. yum repolist all
As shown in the figure, the yum source was successfully replaced:
4. yum clean all
5. yum makecache
end