bugtraq - Re: a cheesy Apache / IIS DoS vuln (+a question)

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Message-ID: <459CBC06.5020502@rowe-clan.net>
Date: Thu, 04 Jan 2007 02:34:14 -0600
From: "William A. Rowe, Jr." <wrowe@...e-clan.net>
To: Michal Zalewski <lcamtuf@...ne.ids.pl>
Cc: bugtraq@...urityfocus.com, full-disclosure@...sys.com
Subject: Re: a cheesy Apache / IIS DoS vuln (+a question)

Michal Zalewski wrote:
> On Wed, 3 Jan 2007, William A. Rowe, Jr. wrote:
> 
>> If you have an issue with this behavior, of HTTP, then you have an issue
>> with the behavior under FTP or a host of other protocols.
> 
> Not really; see above. These are typically well known, preventable by
> configuring server-side limits, and require a much higher overhead.

On the matter of your 1GB window (which is, again, the real issue), you have
any examples of a kernel that permits that large a sliding window buffer by
default, or any examples where this is commonly set quite that high?  If
not, what is your logic for negotiating a packet window larger than the OS
will permit?