FYI on Questions and Answers - Answers to Commonly Asked "New Internet User" Questions

This specification has been revised 4 times since RFC 1177 (1990). Each document below formally obsoleted the one before it; the versions still in force are listed first.

Revision timeline

  1. RFC 1177 (1990)
  2. RFC 1206 (1991)
  3. RFC 1325 (1992)
  4. RFC 1594 (1994)
  5. RFC 2664 (1999)

Current version — implement against this

Superseded versions — historical reference only

This lineage is derived automatically from the “obsoletes” relationships recorded in the public RFC Editor index — no editorial judgement is applied to the ordering. The most recent document in the chain is RFC 2664 (August 1999).