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Uniform Resource Locators (URL) Schemes

In the Uniform Resource Locators (URL) definition [RFC2396,RFC1738] there is a field, called "scheme", to identify the type of resource and access method.



Scheme Name     Descriptiopn                                   Reference
-----------     -----------------------------------------      ---------
ftp             File Transfer Protocol                         [RFC1738]
http            Hypertext Transfer Protocol                    [RFC2068]
gopher          The Gopher Protocol                            [RFC1738]
mailto          Electronic mail address                        [RFC2368]
news            USENET news                                    [RFC1738]
nntp            USENET news using NNTP access                  [RFC1738]
telnet          Reference to interactive sessions              [RFC1738]
wais            Wide Area Information Servers                  [RFC1738]
file            Host-specific file names                       [RFC1738]
prospero        Prospero Directory Service                     [RFC1738]

z39.50s         Z39.50 Session                                 [RFC2056]
z39.50r         Z39.50 Retrieval                               [RFC2056]

cid             content identifier                             [RFC2392]
mid             message identifier                             [RFC2392]

vemmi           versatile multimedia interface                 [RFC2122]

service         service location                               [RFC2165]

imap            internet message access protocol               [RFC2192]

nfs             network file system protocol                   [RFC2224]

acap            application configuration access protocol      [RFC2244]

rtsp            real time streaming protocol                   [RFC2326]

tip             Transaction Internet Protocol                  [RFC2371] 

pop             Post Office Protocol v3                        [RFC2384]

data            data                                           [RFC2397]


Reserved URL Scheme Names:

   afs              Andrew File System global file names
   tn3270           Interactive 3270 emulation sessions
   mailserver       Access to data available from mail servers


REFERENCES

[RFC1738] Berners-Lee, T., L. Masinter, and M. McCahill, "Uniform
          Resource Locators (URL)", RFC 1738, CERN, Xerox Corporation,
          University of Minnesota, December 1994.


[RFC2056] Denenberg, R., J. Kunze, D. Lynch, "Uniform Resource
          Locators for Z39.50", RFC 2056, Library of Congress,
          University of California, San Francisco, SilverPlatter
          Information Ltd., November 1996.

[RFC2068] Fielding, R., et. al., "Hypertext Transfer Protocol --
	  HTTP/1.1", RFC 2068, January 1997.

[RFC2122] Mavrakis, D., H. Layec, and K. Kartmann, "VEMMI URL
          Specification", RFC 2122, Monaco Telematique, ETSI,
          Telecommunication+Multimedia, March 1997.

[RFC2165] Veizades, J., E. Guttman, C. Perkins, and A. Kaplan,
          "Service Location Protocol", RFC 2165, @Home Network, Sun
          Microsystems, June 1997.

[RFC2192] Newman, C., "IMAP URL Scheme", RFC 2192, Innosoft, September
          1997.



[RFC2224] Callaghan, B., "NFS URL Scheme", RFC 2224, Sun Microsystems,
          October 1997.

[RFC2244] Newman, C., and J. Myers, "ACAP -- Application Configuration
          Access Protocol", RFC 2244, Innosoft, Netscape, November
          1997.

[RFC2326] Schulzrinne, H., Rao, A., and R. Lanphier, "Real Time
          Streaming Protocol (RTSP)", RFC 2326, Columbia U., Netscape,
          RealNetworks, April 1998.
     


[RFC2368] Hoffman, P., Masinter, L., and J. Zawinski, "The mailto URL
          scheme", RFC 2368, July 1998.

[RFC2371] Lyon, J., Evans, K., and J. Klein, "Transaction Internet

          Protocol Version 3.0", RFC 2371, July 1998.

[RFC2384] Gellens, R., "POP URL Scheme", RFC 2384, Qualcomm Inc.,
          August 1998.

[RFC2392] Levinson, E., "Content-ID and Message-ID Uniform Resource
          Locators", RFC 2392, XIson Inc, August 1998.

[RFC2396] Berners-Lee, T., Fielding, R., and L. Masinter, "Uniform
          Resource Identifiers (URI): Generic Syntax", RFC 2396,
          August 1998.

[RFC2397] Masinter, L., "The "data" URL scheme", RFC 2397, August
          1998.