netdev - Re: Enable syn cookies by default

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Message-ID: <b2cc26e40910210310o31ca24dcv50f8bd0c3234b71b@mail.gmail.com>
Date:	Wed, 21 Oct 2009 12:10:44 +0200
From:	Olaf van der Spek <olafvdspek@...il.com>
To:	William Allen Simpson <william.allen.simpson@...il.com>
Cc:	netdev@...r.kernel.org
Subject: Re: Enable syn cookies by default

On Wed, Oct 21, 2009 at 11:16 AM, William Allen Simpson
<william.allen.simpson@...il.com> wrote:
> Keep in mind that I'm busy trying to replace syncookies with real cookies,
> so I'm biased.  The syncookies interfere with new options; although in
> Linux, they interfere less than other systems.

How and when do they interfere?
If syn cookies are enabled and the queue isn't full, they're not used
so they don't interfere.
If the queue is full, they do interfere, but the alternative would be
no connection at all.
So I really don't see the disadvantage of enabling cookies by default.

> As Ubuntu is debian based, perhaps they can back-port the Ubuntu changes?

Actually changing the value isn't the problem, but the Debian
maintainer isn't sure it's a good idea (but he doesn't know why).

Olaf
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