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Secure Shell

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The Secure Shell or SSH is a network protocol for secure remote login, providing an encrypted connection instead of the unencrypted, and therefore insecure, connection of telnet.

There was an IETF Working Group for SSH; it has completed its work. The protocol is documented in a series of RFCs. [1] [2] [3] [4] [5] [6] [7] [8]

Most Unix-based systems include an SSH client, and often a server as well. The Open SSH project, part of OpenBSD, are the main developers. A client for Windows is Putty.

References

  1. S. Lehtinen, C. Lonvick (January 2006), The Secure Shell (SSH) Protocol Assigned Numbers, rfc4251
  2. T. Ylonen, C. Lonvick (January 2006), The Secure Shell (SSH) Protocol Architecture, rfc4250
  3. T. Ylonen, C. Lonvick (January 2006), The Secure Shell (SSH) Authentication Protocol, rfc4252
  4. T. Ylonen, C. Lonvick (January 2006), The Secure Shell (SSH) Transport Layer Protocol, rfc4253
  5. T. Ylonen, C. Lonvick (January 2006), The Secure Shell (SSH) Connection Protocol, rfc4254
  6. J. Schlyter, W. Griffin (January 2006), Using DNS to Securely Publish Secure Shell (SSH) Key Fingerprints, rfc4255
  7. F. Cusack, M. Forssen (January 2006), Generic Message Exchange Authentication for the Secure Shell Protocol (SSH), rfc4256
  8. J. Galbraith, R. Thayer (November 2006), The Secure Shell (SSH) Public Key File Format, rfc4716