I have beel looking for dedicated hosting and always found 2 solutions. Windows or Linux/Unix. Which one is better? I am expecting heavy load and concurrency.
Security is a broad topic. When its comes to system level security then either latest Linux or windows 2003 server is better. Application level security and concurrency is more depended on the application you gonna implement than the system itself.
hosting company: www.dailyrazor.com seems to supoort latest tomcat and mysql versions for $11 permonth. I never tried it though.
Can you elaborate on what you mean by that? It's hard to give recommendations when so little is known about your requirements. E.g., what is the relative importance of scalability, ease of manageability and price?
A list of Java hosting companies can be found in the Servlet Faq.