A stress testing tool designed to test out your web server and web site. It can initiate multiple connections from IP aliases and simulated numerous (256+) users at any given time. The rate at which Hammerhead attempts to pound your site is fully configurable, there are numerous other options for trying to create problems with a web site (so you can fix them). . http://hammerhead.sourceforge.net/ https://sf.net/projects/hammerhead/