Most of the  production servers  has limited connectivity to the Internet. If they have any connectivity then probably it  will be through a forward proxy server. If your server is behind the proxy server, then you need to provide proxy server details in /etc/yum.conf.. The proxy setting must specify the proxy server as a complete [...]

With every new kernel update, you receive another boot loader menu item. It will also eat up space from your /boot partition. If you don’t want your /boot partition to be filled up, then you need to remove some of the old kernels. How do we do it? First let’s get the list of kernels [...]

Redhat bases systems are using yum as their package manager. Yum repository definitions are stored in .repo files located in /etc/yum.repos.d/ directory and by adding a new file repo file you can define additional repositories. This file needs to contain at least following information. [repositoryid] name=Some name for this repository baseurl=url://path/to/repository/ repositoryid is need to [...]