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Conference noted::pwv50ift

Title:Kit: Note 4229; Please use NOTED::PWDOSWIN5 for V4.x server
Notice:Kit: Note 4229; Please use NOTED::PWDOSWIN5 for V4.x server
Moderator:CPEEDY::KENNEDY
Created:Fri Dec 18 1992
Last Modified:Fri Jun 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:4319
Total number of notes:18478

4242.0. "IPC$ Used When?" by VMSNET::P_NUNEZ () Wed Apr 02 1997 11:36

    
    What kind of things is IPC$ used for?   And what kind of client
    operation would cause a session to IPC$ be established and remain
    established?  
    
    I've got a customer who has an NT v4.0 workstation that is in a
    separate domain from his v5.0E PATHWORKS server.  Yet just after
    logging into his workstation's domain, we see his client has a share
    connection to IPC$ as user GUEST.   We also saw all a separate session
    as user ADMIN.  So we disconnected all shares and restarted his client
    (so his auto-reconnects didn't occur).  We still see the IPC$
    GUEST connection from his client.
    
    The v5.0E system has the patched pwrk$lmsrv.exe for the duplicate
    session issue (where the username on one session is blank or guest). 
    
    Prior to the patch he would see dual sessions from all his v4 nt
    clients.  Now it's just his NT client.  
    
    The only thing in his startup folder was some fast-find utility;
    we removed it but the IPC$ session still gets established. 
    
    Is there anyway to track what the NT client may be doing (short of a
    network trace)?
    
    Paul
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4242.1Problem or not?VMSNET::P_NUNEZWed Apr 02 1997 17:4810
    
    Also, is this scenario of a GUEST IPC$ session and a "normal" session
    (owned by the real username) ok?  Is it normal to see such things on
    occassion or is this a problem similar to that discussed elsewhere in
    this conference about 2 sessions from nt clients and problems accessing
    resources because the session got switch to GUEST? 
    
    Maybe I'm chasing a red herring?
    
    Paul
4242.2NT 4.0 redirector is attempting RPCs.DUNKLE::MCDERMOTTChris McDermott - Software Janitorial ServicesFri Apr 04 1997 15:007
The NT 4.0 redirector is establising the session for doing RPCs.  It attempts an
RPC, which fails because its not supported by V5, an reverts to using LM2.2 SMBs
instead.

How's that sound?  I don't know any of this as an absolute fact, but I guess that is
what is going on based on the way that NT does things:  try the latest and greatest,
if that fails use the down-level metdod.