Effect of NetBIOS Over TCP on File Sharing

From: Will (westes-usc_at_noemail.nospam)
Date: 09/28/05 

Date: Tue, 27 Sep 2005 21:55:27 -0700

If NetBIOS over TCP is turned off on a workstation, will port 137 the
NetBIOS Name Service be used at all?

If NetBIOS over TCP is turned off, will file sharing from servers located
through Active Directory take place only on port 445?

Aside from making it impossible to do file sharing with older servers, will
the the use of port 445 for file sharing give any greater level of security
than using ports 138 and 139? 

-- 
Will

Relevant Pages

  • RE: Internal Machine making many attempts to connect to Internet on 1 37
    ... The connections to port 137 seem to be ... it does a NetBios lookup. ... conduit permit icmp host server.ip.address.here any information-reply ... Monitor logging: ...
    (Incidents)
  • RE: With SP1, zillions of port 137 and 138 denials
    ... UDP 138 is a kind of "NETBIOS Datagram Service" communication port. ... As for the "Windows Firewall spoof errors", could you let up know the exact ... conclude that its name was in conflict. ...
    (microsoft.public.windows.server.sbs)
  • Re: Functions of Port 445?
    ... get rid of all NetBios over Tcp/Ip) ... performed by port 445? ... which uinstalls the Server service. ... other functions being performed by 445 other than file sharing. ...
    (microsoft.public.windows.server.security)
  • Re: nc help needed.
    ... Try to use a different port and see if it is working. ... An example is the NETBIOS Session Service ... the reader of this message is not the intended recipient, ...
    (Security-Basics)
  • Re: Closing NetBios Port
    ... About the problem of the NetBIOS port, ... The only element I had not removed is the Core Server Support, ... works connected to a Ethernet Network. ...
    (microsoft.public.windowsce.platbuilder)