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What is a Hash DoS Attack?

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F5 BIG-IP Local Traffic Manager (LTM) enables servers to sidestep a hash DoS attack by using the F5 iRules scripting language to drop any POST message that contains an excessive number of variables.

By addressing this problem at the Application Delivery Controller (ADC), the F5 BIG-IP system protects all of the back-end web server platforms at the same time, ensuring the hash DoS attack is never seen by the web server.

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