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Status:

PROPOSED STANDARD

Updated by:

RFC 8308,RFC 9141

Authors:

T. Ylonen
C. Lonvick, Ed.

Stream:

IETF

Source:

secsh (sec)

Cite this RFC:TXT  | XML  |  BibTeX

DOI:  https://doi.org/10.17487/RFC4251

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Abstract

The Secure Shell (SSH) Protocol is a protocol for secure remote loginand other secure network services over an insecure network. Thisdocument describes the architecture of the SSH protocol, as well asthe notation and terminology used in SSH protocol documents. It alsodiscusses the SSH algorithm naming system that allows local extensions. The SSHprotocol consists of three major components: The Transport LayerProtocol provides server authentication, confidentiality, andintegrity with perfect forward secrecy. The User AuthenticationProtocol authenticates the client to the server. The ConnectionProtocol multiplexes the encrypted tunnel into several logicalchannels. Details of these protocols are described in separatedocuments. [STANDARDS-TRACK]

For the definition ofStatus,seeRFC 2026.

For the definition ofStream, seeRFC 8729.