sufficient information to locate a single resource, but, rather, are
   location-independent.

3.7. NNTP

   The nntp URL scheme is an alternative method of referencing news
   articles, useful for specifying news articles from NNTP servers (RFC
   977).

   A nntp URL take the form:

      nntp://:/<newsgroup-name>/<article-number>

   where  and  are as described in Section 3.1. If :
   is omitted, the port defaults to 119.

   The <newsgroup-name> is the name of the group, while the <article-
   number> is the numeric id of the article within that newsgroup.

   Note that while nntp: URLs specify a unique location for the article
   resource, most NNTP servers currently on the Internet today are
   configured only to allow access from local clients, and thus nntp
   URLs do not designate globally accessible resources. Thus, the news:
   form of URL is preferred as a way of identifying news articles.






 
RFC 1738            Uniform Resource Locators (URL)        December 1994


3.8. TELNET

   The Telnet URL scheme is used to designate interactive services that
   may be accessed by the Telnet protocol.

   A telnet URL takes the form:

       telnet://:@:/

   as specified in Section 3.1. The final "/" character may be omitted.
   If : is omitted, the port defaults to 23.  The : can
   be omitted, as well as the whole : part.

   This URL does not designate a data object, but rather an interactive
   service. Remote interactive services vary widely in the means by
   which they allow remote logins; in practice, the  and
    supplied are advisory only: clients accessing a telnet URL
   merely advise the user of the suggested username and password.

3.9.  WAIS

   The WAIS URL scheme is used to designate WAIS databases, searches, or
   individual documents available from a WAIS database. WAIS is
   described in [7]. The WAIS protocol is described in RFC 1625 [17];
   Although the WAIS protocol is based on Z39.50-1988, the WAIS URL
   scheme is not intended for use with arbitrary Z39.50 services.

   A WAIS URL takes one of the following forms:

     wais://:/
     wais://:/?
     wais://:///

   where  and  are as described in Section 3.1. If :
   is omitted, the port defaults to 210.  The first form designates a
   WAIS database that is available for searching. The second form
   designates a particular search.   is the name of the WAIS
   database being queried.

   The third form designates a particular document within a WAIS
   database to be retrieved. In this form  is the WAIS
   designation of the type of the object. Many WAIS implementations
   require that a client know the "type" of an object prior to
   retrieval, the type being returned along with the internal object
   identifier in the search response.  The  is included in the
   URL in order to allow the client interpreting the URL adequate
   information to actually retrieve the document.





 
RFC 1738            Uniform Resource Locators (URL)        December 1994


   The  of a WAIS URL consists of the WAIS document-id, encoded
   as necessary using the method described in Section 2.2. The WAIS
   document-id should be treated opaquely; it may only be decomposed by
   the server that issued it.

3.10 FILES

   The file URL scheme is used to designate files accessible on a
   particular host computer. This scheme, unlike most other URL schemes,
   does not designate a resource that is universally accessible over the