Secure Shell (SSH) lets systems administrators securely manage remote systems. But most people only use the bare minimum SSH offers. Used properly, SSH simplifies your job.
This book saves you from sifting a decade of obsolete online tutorials and quickly gets you running:SSH with the OpenSSH server and the PuTTY and OpenSSH clients.
Master SSH with SSH Mastery.
Openvpn Installation (Power Installation like business for company)
VPS Server type
Installation With user admin client
Openvpn server status
Connection from reject IP
and many more....