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• About the program

  BCNS is a standalone utility that helps BC (Background Communicator) users to find other BC users. It may be extremely useful when you use BC community groups / chat rooms.

• How to use
  • One user starts BCNS and informs others about address (port), it is started on.
    (If the user wants to communicate with other BC users, he will need to start BC as well. BCNS will not allow communicating with connected to BCNS users.)
  • Other users connect to this BCNS from BC (by adding user to the list and specifying BCNS address (port) in user properties).
  • When BC and BCNS are started on a single machine:
    • BC will not try to connect to the "local" BCNS automatically. If you want to connect to the "local" BCNS, do it as described above.
    • By default BCNS uses exactly the same ports as BC: port TCP 3782 for control messages and port UDP 3782 for audio data (GUI version only). If you want to run BCNS and BC simultaneously, assignment of default control port to BCNS (TCP 3782) and control port TCP 3783 to BC is advised.

• How does it work

  BC is a peer-to-peer application. It searches for new users by examining all connected users and BCNS-es.
  BCNS-es provide information about other connected users, belonging to the appropriate communities.
  When BC finds a user with community, matching community of one of the groups in user list, it automatically includes him into this group and connects.

  • If BC will later disconnect from BCNS, it will not lose any other connections.
  • BCNS can solve problems with finding other users and dynamic IP addressing.
  • User may use more than one BCNS simultaneously.

• BCNS versions

  There are three versions of BCNS:
  

  • GUI version, that runs as a generic Windows application with convenient user interface and complete set of features.
  • Service version that runs as a Windows NT service.
  • Console version for Unix.

  The main differences between various BCNS versions are covered in the following table:

  GUI version	(bandled with a client)
  Works with all Windows operating systems (32 bit). (It doesn't work very well under Windows 9x/Me due to the system limitations.) Has an informative interface, implements demultiplexing and password protection. Recommended for small user groups. Limited to 500 of simultaneously connected users. More about GUI version ...

  NT service version	(bandled with a client)
  Requires Windows NT based operating system. Installed as a service. Low CPU time and memory usage (in comparison with GUI version). Recommended for large user groups. Hosts any (reasonable) number of connections. More about service version ...

  Console (Unix) version	(available as a stand alone download)
  Distributed in source code and therefore compatible with most of today Unix clones (may be compiled for Win32). Low CPU time and memory usage (in comparison with GUI version). Recommended for very large user groups (when running under Unix). Hosts any (reasonable) number of connections.

  Using BC in BCNS role

  You may, and it is sometimes useful, to use BC as BCNS. Doing so allows you to filter users by communities, but the following limitations applies: BC requires presence of sound device. BC can't accept more then 100 connections. BC can accept only users of specified communities. BC is a very CPU time and memory consumptive application (in comparison with any version of BCNS).

Please send your suggestions and bug reports to support@bcom.freehosting.net