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Q130289: TN3270 Errors with Telnet Daemon Installed

Article: Q130289
Product(s): Microsoft SNA Server
Version(s): WINDOWS:2.1,2.11,2.11SP1,2.11SP2,3.0,3.0SP1,3.0SP2,3.0SP3,4.0
Operating System(s): 
Keyword(s): kb3rdparty kbinterop kbnetwork kbsetup kbsna211sp1 kbsna211sp2 kbsna300sp1 kbsna300sp2
Last Modified: 13-JUN-2001

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The information in this article applies to:

- Microsoft SNA Server, versions 2.1, 2.11, 2.11 SP1, 2.11 SP2, 3.0, 3.0 SP1, 3.0 SP2, 3.0 SP3, 4.0 
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SUMMARY
=======

If you have installed both a telnet daemon and the SNA Server TN3270 service on
a computer running SNA Server , the following error message may appear:

  Could not start the TN3270 service on \\servername
  Error 2140: An internal windows NT error occurred

The following events are recorded in the system log:

  Event 102:   TN3270 Service initialization completed by initialization

  error.

  Explanation: TN3270 Service initialization failed.

  Event 205:   Windows Sockets API call BIND for port 23 failed with

  return code WSAEADDRINUSE.

  Explanation: Port 23 is in use by another Windows NT process.

If the TN3270 Server Service is started before your Telnet daemon, you encounter
the same problem with a different error message:

  Could not start "Telnet Daemon name" server service on \\servername
  error 1067: the process terminated unexpectedly.

The following events are recorded in the system log:

  Event 6553:  Telnet daemon name
  Description: Failed to initialize the "telnet" tcp service

  Event 6553:  Telnet Daemon name
  Description: Could not create service: telnet; error code 10048

CAUSE
=====

By default, both services attempt to initialize port 23 as the default port for
their services.

RESOLUTION
==========

If you are running both the TN3270 Server service and a Telnet Daemon service,
create a separate entry for both services in the following file:

  %systemroot%\system32\drivers\etc\services

The service name should be TN3270. You must specify unique port numbers for both
the Telnet and TN3270 Service entries.

For example, after you edit the SERVICES file it might read:

  # Copyright (c) 1993-1994 Microsoft Corp.
  #
  # This file contains port numbers for well-known services as defined by
  # RFC 1060 (Assigned Numbers).
  #
  # Format:
  #
  # <service name>  <port number>/<protocol>  [aliases...]   [#<comment>]
  #

  echo                7/tcp
  echo                7/udp
  discard             9/tcp    sink null
  discard             9/udp    sink null
  systat             11/tcp
  systat             11/tcp    users
  daytime            13/tcp
  daytime            13/udp
  netstat            15/tcp
  qotd               17/tcp    quote
  qotd               17/udp    quote
  chargen            19/tcp    ttytst source
  chargen            19/udp    ttytst source
  ftp-data           20/tcp
  ftp                21/tcp
  telnet             23/tcp
  tn3270             24/tcp
  smtp               25/tcp    mail
  time               37/tcp    timserver
  time               37/udp    timserver
  rlp                39/udp    resource      # resource location
  name               42/tcp    nameserver
  name               42/udp    nameserver
  whois              43/tcp    nicname       # usually to sri-nic
  domain             53/tcp    nameserver    # name-domain server
  domain             53/udp    nameserver
  nameserver         53/tcp    domain        # name-domain server

NOTE: The new entry begins with tn3270.

Additional query words: prodnt event viewer prodsna

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Keywords          : kb3rdparty kbinterop kbnetwork kbsetup kbsna211sp1 kbsna211sp2 kbsna300sp1 kbsna300sp2 kbsna300sp3 sna4 kbsna400sp1 
Technology        : kbAudDeveloper kbSNAServSearch kbSNAServ300 kbSNAServ211 kbSNAServ400 kbSNAServ210 kbSNAServ211SP1 kbSNAServ211SP2 kbSNAServ300SP3 kbSNAServ300SP1 kbSNAServ300SP2
Version           : WINDOWS:2.1,2.11,2.11SP1,2.11SP2,3.0,3.0SP1,3.0SP2,3.0SP3,4.0

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