Apache/PHP/MYSQL perfomance Tester needed

Dear All, I am a wireless service provider. My services have passed development/Test phase and will be Live very soon. I have been asked to be ready for thousands of concurrent requests on Apache/Database Server who validates each user. I am looking for someone to carry out a full scale attack to expose server vulnerabilities and also put server performance to a test. What sort of testing needed? Each user logging into our wireless network needs to purchase online voucher. These vouchers are bought thru online payment gateway for example PAYPAL. At this moment default values supplied in paypal form work well and no manual intervention is needed. You need to provide me a script which will run thousands of concurrent connections on my server for simulating live user load. The goal of this test is to make sure at end of this test I can say “This server can support X number of concurrent connections?? Thanks, Sagar ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Deliverables must be in ready-to-run condition, as follows (depending on the nature of the deliverables): a) For web sites or other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment. b) For all others including desktop software or software the buyer intends to distribute: A software installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request. 3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement). ## Platform LINUX APACHE PHP & TEST scripts