Secure Shell
Computer application
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The Secure Shell Protocol is a cryptographic network protocol for operating network services securely over an unsecured network. Its most notable applications are remote login and command-line execution. Wikipedia
Developer(s): Tatu Ylönen, Internet Engineering Task Force (IETF)
Introduction: 1995
OSI layer: Transport layer through application layer
Port(s): 22
Purpose: secure connection, remote access
RFC(s): RFC 4250, RFC 4251, RFC 4252, RFC 4253, RFC 4254