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Date: Wed, 03 Jul 2002 20:46:18 -0700
To: Alex Chan <alexchan AT amazingmedia DOT com>, cygwin AT cygwin DOT com
From: Randall R Schulz <rrschulz AT cris DOT com>
Subject: Re: access port 127.0.0.1:1052
In-Reply-To: <Pine.LNX.4.21.0207032200360.27963-100000@localhost.localdo
 main>
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Alex,

According to <http://www.iana.org/assignments/port-numbers>, port 1052 is 
assigned to:

ddt             1052/tcp   Dynamic DNS Tools
ddt             1052/udp   Dynamic DNS Tools

I don't know what "Dynamic DNS Tools" are, but perhaps it means something 
to you or someone else here? There are quite a few Google hits on this phrase.

Do you use the BASH PROMPT_COMMAND variable to have a command invoked prior 
to the issuing of each primary (PS1) prompt? If so, might that command be 
triggering the network activity you mention?

Perhaps your PS1 string is using "\h" or "\H", both of which put the host 
name into the prompt? That, along with the "Dynamic DNS Tools" suggests a 
possible connection.

If you figure it out, please let us know.

Randall Schulz
Mountain View, CA USA


At 19:13 2002-07-03, you wrote:
>After upgrading from 1.3.9 to 1.3.12, I noticed that many cygwin programs
>including bash, ls, which, echo and clear attempt to access port 1052 on
>127.0.0.1 (ZoneAlarm alerts me to this activity).
>
>I could not find any documentation on this port or why this access is
>necessary. Has anyone else observed this behavior?  Does anyone know what
>it is for?
>
>Thanks,
>
>-alex


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