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HTTP Flood Denial of Service

Posted on 2007-12-03
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I'm on Red Hat Linux 5 using the Apache web server.

What are people recommending for protecting against  HTTP flood attacks?

I'd love to have some application that could limit usage by IP address - like allowing only one page load per unique IP address every two seconds.

Does something like this exist?

http://pear.php.net/package/HTTP_FloodControl
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Question by:Geoff Millikan
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simonbun earned 500 total points
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Yes, you should look into apache's mod_security (http://www.modsecurity.org/) or mod_evasive (http://www.zdziarski.com/projects/mod_evasive/). Both can do this, but in my experience it was easier to do this with mod_evasive.

regards,
Simon
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by:Geoff Millikan
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Simon,

Thanks! And I'm sorry, I should have indicated that I'm on Apache/2.2.3.  Looks like mod_evasive doesn't run on 2.2.x  So would you suggest my best option is http://www.modsecurity.org/
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by:simonbun
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Yes, mod_security has a whole slew of configuration options, allowing very specific settings. Limiting requests by ip / s is possible.
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