Mixing repos is never a good practice.

Let us say you would like to install 3rd party repository from foo.nixcraft.com. Create a file called foo: # cd /etc/yum.repos.d # vi foo Append following code: [foo] name=Foo for RHEL/ CentOS $releasever - $basearch baseurl=http://foo.nixcraft.com/centos/$releasever/$basearch/ enabled=1 gpgcheck=1 gpgkey=http://foo.nixcraft.com/RPM-GPG-KEY.txt Save and close the file. Where, * [foo] : Repository name i.e. The [main] section must exist for yum to do anything. * name=Foo for RHEL/ CentOS $releasever - $basearch : A human readable string describing the repository name * baseurl=http://foo.nixcraft.com/centos/$releasever/$basearch/ : Must be a URL to the directory where the yum repository’s ‘repodata’ directory lives * enabled=1 : Enabled or disabled repo. To disable the repository temporarily, set the enabled to 0 * gpgcheck=1 : Security feature, use GPG key * gpgkey=http://foo.nixcraft.com/RPM-GPG-KEY.txt : GPL file location Also you need to import the gpg key for the repository as follows: # rpm --import http://foo.nixcraft.com/RPM-GPG-KEY.txt Now you are ready to install software from foo repository. For further information refer to yum.conf man page: # man yum.conf # man yum Hope this tip will help you to configure repository as and when required.