Do you want to see who is accessing your server through SSH or trying some malicious attempt on SSH? Then you visited the right blog post.

Everyone knows that patching packages are not fun. I decided to create an Ansible role that can patch Enterprise Linux ( RHEL ) and other Red Hat derivatives (e.g. CentOS, Rocky, Alma, Fedora ). This role support 3 modes for patching.

1. Patch all OS packages to the latest version
2. Apply all security patches
3. Apply all bugfix patches

Sometimes restart is necessary. In that case, yum-utils (dnf-utils) provide an excellent utility “needs-restarting”. This utility can inform us if a restart is required. If we mix all this we realize that automated patching is not that hard.

This post cover alternatives for checking open port without telnet. Some companies have strict policies and it can happen that telnet is not available.

And you know what? There is no requirement to install telnet. Just check the below alternatives.

This blog post focus on a simple and quick explanation of what Ansible is and what it can do.