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Superseded versions — historical reference only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).