If you're looking for a simple-to-use web-based GUI for administering your relational MySQL databases and then some, Adminer may be what you're looking for.
Grafana needs data to be useful. Jack Wallen walks you through the process of using a MySQL database as a source for data visualization in Grafana.
Learn how to troubleshoot Apache 2 when it's not executing PHP files with this easy-to-follow, step-by-step tutorial.
Use this step-by-step guide to learn how to set up Samba to create file and printer sharing to SMB/CIFS clients from a Linux server.
If you have users that need certain admin privileges on your Linux machines, here's a walk-through of the process for granting full or specific rights.