These are GNU/Linux Operating System specific guides independent of any distributions. The topic here are mainly covers fundamentals, concepts, architectures, OS specific tools, etc. for OS design, architecture, and system administration.
This section covers all the boot management.
This section covers all the Linux authentication management.
this section covers all file servers managements across network.
this section covers all network related managements.
this section covers all file and directory management.
this section covers all software packagers.
This section covers all storage disks managements.
This section covers all time and location related managements.
That's all for GNU/Linux Operating System.