The Apache DoS Evasive Maneuvers Module is a module for both Apache 1.3 and 2.0 that provides functionality for detecting and fighting off DoS attacks and brute force attacks. It does this by adding addresses to a 10-second '403 List' and rejecting rapidly repeated requests for the same URL from the same addresses, using an internal hash table, on a per-child basis. This module can be configured to talk to ipchains, ipfilter, or any other tool designed to push the attack out to the network layer, and provides email notification in the event of an attack.
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