[nflug] Wierd stuff, not necessarily linux related, but I call upon smarter people than I..

[Richard Hubbard]

Thanks!

The oddball thing seems to be that the guy's firewall seems to be ok with the duplicate packets (which means the firewall programmers understood this issue), and it doesn't think it's an attack.  The connection is being rejected by the email server.  

 

<span style="font-family:comic sans ms;">Richard Hubbard </span>
ATTO Technology Inc



----- Original Message ----
From: Robert Wolfe <robertwolfe at localnet.com>
To: nflug at nflug.org
Sent: Monday, October 13, 2008 9:47:30 AM
Subject: Re: [nflug] Wierd stuff, not necessarily linux related, but I call upon smarter people than I..

On Mon, 2008-10-13 at 06:38 -0700, Richard Hubbard wrote:

> So, the question is...Has anyone had similar experiences?  Does anyone
> here run Qmail or Postfix (I'm not sure which one was rejecting the
> duplicated packets) Is there a "syn attack" setting that can be
> configured that I can tell people about which will allow their servers
> to lighten up a little?

We actually run both here at LocalNet/CoreComm.  I'll try and do some digging
and see what I can find, but AFAIK we have never had this sort of
problem (we use Cisco routers and switches here).

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