Watching performance on a DHCP Server

David W. Hankins David_Hankins at
Wed Feb 13 23:08:53 UTC 2008

On Wed, 2008-02-13 at 12:04 -0600, John Hascall wrote:
>   It seems to me that without a timeout<1>, you have an avenue for a
>   more subtle denial of service attack -- instead of having to stream
>   so many packets at the server that you knock it over, you just have
>   to send enough to keep the input queue from emptying.

the queue can only be 28 packets long.

also, the code for a timeout is in but commented out for conflicting
work (the timed event system has only recently been modified to support
sub-second scheduling).  it's a trivial matter to put it in now, and as
i said earlier, we will do so in 4.1.0's alphas.

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