One additional reason to turn resolving off by default: There is occasional
salting of networks with fake traffic. DNS lookups for these fake IP
addresses may trigger a "someones going be in trouble because they're
sniffing packets without permission" response.
From: "Greg Morris" <GMORRIS@xxxxxxxxxx>
To: <jmayer@xxxxxxxxx>
CC: <ethereal-dev@xxxxxxxxxxxx>
Subject: Re: [Ethereal-dev] Request for Change
Date: Mon, 23 Sep 2002 10:31:46 -0600
Enough said, I am coming from a support role and analyze hundreds of
traces per month for many different customers. I have ran into this
issue several times and thought I would ask for opinions. Perhaps the
issue is not as bad in Unix environments as it is in Win32. The bad
thing is for anyone downloading Ethereal and attempting to open a trace
that was not captured on their local network. They will think that
Ethereal is a dog since it takes forever to open a trace. :@(
>>> Joerg Mayer <jmayer@xxxxxxxxx> 09/23/02 10:19AM >>>
On Mon, Sep 23, 2002 at 09:43:31AM -0600, Greg Morris wrote:
> Yes, I know that you can turn this off... I was requesting that it
be
> turned off by default and that if someone wants this capability they
can
> turn it on. Perhaps what might be a better solution is that the name
> resolves be enabled by default on capture and disabled by default on
an
> open... What do you think? :@)
Greg, while this may look ok at first glance, I'm a fan of orthogonal
command line options (which we don't have but I don't want to make
things
worse), so changing the default behaviour depending on whether we are
doing one thing or another is not a good idea.
Another thing you may want to consider is, that while there is an
option
to turn all resolving off (-n), there is no option +n (well, actually
there is in the form of -Nmnt).
In case you really want to make such an incompatible change, you have
to
take into consideration that tethereal is used in scripts.
That said: In case we really start making incompatible changes to the
ethereal command line handling, I'm not really opposed to it but then
we should change quite a few things in addition and print out a fat
warning whenever the new version is started.
Ciao
J�rg
--
Joerg Mayer
<jmayer@xxxxxxxxx>
I found out that "pro" means "instead of" (as in proconsul). Now I
know
what proactive means.
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