[techtalk] Re: Log output (Whoops)

[Kath]

More log questions:

May 12 15:38:05 kathweb named[2936]: wrong ans. name (www.merck.com !=
iserv.merck.com)
May 12 15:38:05 kathweb named[2936]: wrong ans. name (www.merck.com !=
iserv.merck.com)

Whats that mean?

- Kath

----- Original Message -----
From: <jenn at simegen.com>
To: "Kath" <ranger at optonline.net>
Cc: <techtalk at linuxchix.org>
Sent: Saturday, May 12, 2001 10:54 AM
Subject: Re: [techtalk] Re: Log output (Whoops)


> Kath wrote:
>
> > Sorry, stupid Outlook has some kind of shortcut key to autosend or
> > something...
> >
> > here is the log:
> >
> > May 12 09:15:55 kathweb kernel: IP_MASQ:reverse ICMP: failed checksum
> > from 61.11.12.152!
> > May 12 09:21:48 kathweb kernel: IP_MASQ:reverse ICMP: failed checksum
> > from 61.11.12.152!
>
> If there's only a few, it means that there's some sort of minor
> glitch between source and destination.
>
> If there's a lot, it *MIGHT* mean someone's trying a man-in-the-middle
> attack.
>
> All it really means is that some packets were bad - the checksum
> (a means of verifying packet correctness) didn't match with what
> it should have been.
>
>
>
> Jenn V.
> --
>      "Do you ever wonder if there's a whole section of geek culture
>              you miss out on by being a geek?" - Dancer.
>
> jenn at simegen.com     Jenn Vesperman     http://www.simegen.com/~jenn/
>
>
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