On Thu, Oct 15, 2009 at 09:05:17PM -0400, Wietse Venema wrote:
> Postscreen's greetpause is only the first step in a sequence of
> barriers that I expect will be needed. Adding greylisting support
> would be a next step. Adding greylist support to a kernel-based
> implementation looks unattractive.
The kernel can be a good place to implement TCP connection concurrency,
rate-limit and bandwidth cap controls. The "sensor" logic to determine
which IPs are subject to which controls should be in "user-land".
--
Viktor.
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