blocking a string in a packet using ipfw

[Gary Palmer]

On Thu, Sep 14, 2006 at 03:29:14PM +0200, Willem Jan Withagen wrote:
> I received a call from a customer this morning that all of his websites were
> no longer on line. So After some resetting and more I turnout that there 
> was a
> serious overload on his server. Over 500 clients connected. (norm is 50) and
> they were all trying to get this file 777.gif. (Which is not on any of the 
> sites).

Why not just create a 0 length file 777.gif and let people fetch it?  Its
probably a lot less work for the server.