The Secure Shell Protocol Assigned Numbers
RFC 4250, “The Secure Shell Protocol Assigned Numbers”, is a Proposed Standard document published in January 2006 by S. Lehtinen, C. Lonvick. It has since been updated by RFC 8268, RFC 9142, RFC 9519. The canonical text is published by the RFC Editor.
Abstract
This document defines the instructions to the IANA and the initial state of the IANA assigned numbers for the Secure Shell (SSH) protocol. It is intended only for the initialization of the IANA registries referenced in the set of SSH documents. [STANDARDS-TRACK]
What “Proposed Standard” means
An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.
The canonical text of RFC 4250 is hosted at rfc-editor.org. Available in TXT,HTML.
- RFC 4249 Implementer-Friendly Specification of Message and MIME-Part Header Fields and Field Components
- RFC 4251 The Secure Shell Protocol Architecture
- RFC 4252 The Secure Shell Authentication Protocol
- RFC 4253 The Secure Shell Transport Layer Protocol
- RFC 4246 International Standard Audiovisual Number URN Definition
- RFC 4254 The Secure Shell Connection Protocol
- RFC 4255 Using DNS to Securely Publish Secure Shell Key Fingerprints
- RFC 4256 Generic Message Exchange Authentication for the Secure Shell Protocol