It is particularly handy for accessing headless servers that have no screen or keyboard attached for inputting commands. Secure Shell or Secure Socket Shell (SSH) is an encrypted network protocol that allows you to access other computers over an insecure network (such as the internet).Īlthough primarily a tool for system administrators, SSH can be useful for private users who want to execute commands and move files on home media or games servers, set up a VPN server on a rented VPS space, or suchlike.