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| Subject: | Re: Dropping connection instead of returning 400 |
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| Date: | Mon, 18 Apr 2005 18:29:14 +0900 |
On Tue, 1 Mar 2005 20:59:37 -0800 (PST) christopher@baus.net wrote:
One thing that keeps coming back to me is 400 Bad Request handling. It is now my opinion that security proxies should just drop connection when faced with traffic they refuse to handle.
Google web server (GWS) works just like that. If you send an invalid HTTP request like this to Google, -- GET / AAAA/1.0 User-Agent: hoge Host: www.google.com -- GWS drops the TCP connection with RST packet. On the other hand, Apache and IIS return a 400 response. BTW, I got this information from the book "Intrusion Prevention and Active Response" page 137. http://www.amazon.com/exec/obidos/tg/detail/-/193226647X/ -- Kanatoko<anvil@jumperz.net> Open Source WebAppFirewall http://guardian.jumperz.net/
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