Secure Shell, is a tunnel encryption using port 22. It is commonly used as a secure alternative to telnet. SSH can also be used to encrypt just about any plain-text protocol, for example FTP over SSH. Secure Socket Layer (SSL) and Transport Security Layer (TLS) are very similar to SSH but are most commonly used in HTTPS. Blowfish is an older, but still common symmetric-key block cipher.
Secure Shell (SSH) is a cryptographic network protocol for operating network services securely over an unsecured network. The best known example application is for remote login to computer systems by users.
SSH provides a secure channel over an unsecured network in a client-server architecture, connecting an SSH client application with an SSH server. Common applications include remote command-line login and remote command execution, but any network service can be secured with SSH. The protocol specification distinguishes …