> Is there a CF solution for primitive dos attacks?

CF isn't really going to be especially helpful for this, because you don't
have a way to automatically track requests on a per-IP basis. You could
certainly write some code for this, but if the server's getting that much
traffic, you'd be increasing its overhead, I think. If you're using IIS,
you'd probably be better off writing an ISAPI filter, I think.

However, if you wanted to do this, you could certainly write CF code to do
it. You could track each visitor's IP address, the number of requests from
that IP, and the elapsed time in server memory, and write code to "flag" IP
addresses with excessive counts. You'd need to include the appropriate code
in each Application.cfm file used on the server.

Note that if you do this, as mentioned by Adam Cantrell, you'll block
spiders, and you might not want to do that.

Dave Watts, CTO, Fig Leaf Software
http://www.figleaf.com/
voice: (202) 797-5496
fax: (202) 797-5444
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