Great Circle Associates Firewalls
(December 1997)
 

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Subject: Re: WINS Port
From: Youngjin Hong <wits @ nuri . net>
Date: Thu, 11 Dec 1997 17:56:34 +0900
To: MCNY Security Officer <security @ mcny . com>
Cc: Firewalls @ GreatCircle . COM
References: <Pine . GSO . 3 . 94 . 971208181828 . 1979D-100000 @ gotham . mcny . com>

According to WINS whitepaper from Microsoft, WINS initiates
its session through port 135. And then WINS communicates
with its clients or other WINS server through a random port
above 1024. This's because the WINS Administrator uses
"dynamic endpoints" in RPC.
But in Windows NT 4.0, the system defaults for dynamic port
allocation may be defined in the registry. That is, a list
of all ports available from the Internet should be defined
in the following keys:

  HKEY_LOCAL_MACHINE\Software\Microsoft\Rpc\Internet

Good luck!

-- Youngjin Hong
   System Engineering
   Inet Inc.
   http://www.iworld.net

MCNY Security Officer 작성함:

> Does anyone know what port a Microsoft NT workstation
> uses to query a Microsoft NT server for WINS resolution?
>
> Thanks,
>
> Lou Person
> lperson @
 mcny .
 com





Follow-Ups:
References:
  • WINS Port
    From: MCNY Security Officer <security @ mcny . com>
Indexed By Date Previous: Re: Secure POP/IMAP
From: Miguel Armas <kuko @ calvo . teleco . ulpgc . es>
Next: Tools and suggestions NEEDED!!
From: Dennis Nwaigbo <dnwaig @ ctp . com>
Indexed By Thread Previous: WINS Port
From: MCNY Security Officer <security @ mcny . com>
Next: Re: WINS Port
From: Cary Conover <carydc @ airmail . net>

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