Apache/linux optimization

Hi coders! I need a good server optimization that secures good apache configuration that secures the server from beeing attacked by things such as Ddos and syn-flood attacks. The server should also be optimized to handle a lot of traffic. This moment we have two webpages that gets 50 000 unique visitors every day. We want to be able to handle around 100 k unique visitors a day. I can pay 50 $ now and 200 $ as a bonus if the server works properly (with no interuptions from attacks) for 30 days. Thanks for answers. ## 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 The server is a 3.0 dual xeon, 2 GB DDR ram, 80 GB SCSI. CentOS is the dist.