RFC 2389: Feature negotiation mechanism for the File Transfer Protocol

This document provides a mechanism by which clients of the FTP protocol can discover which new features are supported by a particular FTP server.…

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Outgoing relationships (1 related RFC)

Informative reference — RFC 2234: Augmented BNF for Syntax Specifications: ABNF

Incoming relationships (4 related RFCs)

Normatively referenced by — RFC 4217: Securing FTP with TLS
Normatively referenced by — RFC 3659: Extensions to FTP
Normatively referenced by — RFC 7151: File Transfer Protocol HOST Command for Virtual Hosts
Informatively referenced by — RFC 2626: The Internet and the Millennium Problem (Year 2000)