SSH is an awesome open protocol that's available on almost every computing platform out there. When it comes to Linux, Unix, and Mac, you'll usually find the widely-used OpenSSH implementation. The SSH suite typically includes three components: slogin for secure login, ssh for general secure connections, and scp for secure file copying. These are the more secure versions of the insecure Unix utilities: rlogin, rsh, and rcp. So, SSH is here to make your life easier and more secure!