1. Enter / etc/yum/repos.d / directory (where the configuration files of yum software warehouse are stored)
[root@localhost ~]# cd /etc/yum.repos.d/
2. Delete the original yum source
[root@localhost yum.repos.d]# rm -f *
3. Use vim editor to create a new configuration file (the file name is optional, but the suffix must be. repo)
[root@localhost yum.repos.d]# vim mirrors.163.com.repo
configuration parameter
[mirrors.163.com] name=mirrors.163.com baseurl=http://mirrors.163.com/centos/7/os/x86_64/ enabled=1 gpgcheck=0
4. Check whether the configuration is correct
[root@localhost yum.repos.d]# yum repolist
Correct effect:
Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile mirrors.163.com.repo | 3.6 kB 00:00:00 (1/2): mirrors.163.com.repo/group_gz | 166 kB 00:00:05 (2/2): mirrors.163.com.repo/primary_db | 5.9 MB 00:00:09 repo id repo name status mirrors.163.com.repo mirrors.163.com.repo 9,911 repolist: 9,911
5. Update Yum cache
[root@localhost yum.repos.d]# yum list
================================================================
ps: DNS resolution needs to be configured if the following error occurs
Loaded plugins: langpacks, product-id, subscription-manager This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register. http://mirrors.163.com/centos/7/os/x86_64/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: mirrors.163.com; Unknown error" Trying other mirror. http://mirrors.163.com/centos/7/os/x86_64/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: mirrors.163.com; Unknown error" Trying other mirror. repo id repo name status mirrors.163.com mirrors.163.com 0 repolist: 0
resolvent:
1. Check whether there is DNS configuration
[root@localhost Desktop]# cat /etc/resolv.conf
2. Add DNS configuration
[root@localhost Desktop]# vim /etc/resolv.conf
Configuration content:
nameserver 114.114.114.114 nameserver 8.8.8.8
3. Restart network service
[root@localhost Desktop]# systemctl restart network