RFC 1436 (rfc1436) - Page 1 of 16


The Internet Gopher Protocol (a distributed document search and retrieval protocol)



Alternative Format: Original Text Document



Network Working Group                                     F. Anklesaria
Request for Comments: 1436                                  M. McCahill
                                                             P. Lindner
                                                             D. Johnson
                                                              D. Torrey
                                                             B. Alberti
                                                University of Minnesota
                                                             March 1993


                      The Internet Gopher Protocol
         (a distributed document search and retrieval protocol)

Status of this Memo

   This memo provides information for the Internet community.  It does
   not specify an Internet standard.  Distribution of this memo is
   unlimited.

Abstract

   The Internet Gopher protocol is designed for distributed document
   search and retrieval.  This document describes the protocol, lists
   some of the implementations currently available, and has an overview
   of how to implement new client and server applications.  This
   document is adapted from the basic Internet Gopher protocol document
   first issued by the Microcomputer Center at the University of
   Minnesota in 1991.

Introduction

   gopher  n.  1. Any of various short tailed, burrowing mammals of the
   family Geomyidae, of North America.  2. (Amer. colloq.) Native or
   inhabitant of Minnesota: the Gopher State.  3. (Amer. colloq.) One
   who runs errands, does odd-jobs, fetches or delivers documents for
   office staff.  4. (computer tech.) software following a simple
   protocol for burrowing through a TCP/IP internet.

   The Internet Gopher protocol and software follow a client-server
   model.  This protocol assumes a reliable data stream; TCP is assumed.
   Gopher servers should listen on port 70 (port 70 is assigned to
   Internet Gopher by IANA).  Documents reside on many autonomous
   servers on the Internet.  Users run client software on their desktop
   systems, connecting to a server and sending the server a selector (a
   line of text, which may be empty) via a TCP connection at a well-
   known port.  The server responds with a block of text terminated by a
   period on a line by itself and closes the connection.  No state is
   retained by the server.



Anklesari, McCahill, Lindner, Johnson, Torrey & Alberti