RFC Number
SSH Protocol Architecture
Describes the overall architecture of SSH.
RFC 4251
SSH Transport Layer Protocol
Details the SSH transport layer.
RFC 4253
SSH Authentication Protocol
Describes the SSH authentication methods.
RFC 4252
SSH Connection Protocol
Covers the SSH connection setup and management.
RFC 4254
SSH Secure Shell Command Language
Defines the syntax and semantics of the SSH command language.
RFC 4256
Diffie-Hellman Group Exchange for the Secure Shell (SSH) Transport Layer Protocol
Defines the use of Diffie-Hellman Group Exchange in SSH.
RFC 4419
Using the Secure Shell (SSH) Protocol with Data Compression
Describes how to apply data compression to SSH connections.
RFC 4256