i want to secure my web-server from hackers. what are the ways for secure my web server? . I need tight security. without admin permission no one can not access or hack my web-server
closed as too broad by Adi, NULLZ, Polynomial, Lucas Kauffman, Xander Jul 31 '13 at 13:53
Please edit the question to limit it to a specific problem with enough detail to identify an adequate answer. Avoid asking multiple distinct questions at once. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.
Harden your operating system, harden your application server, securely develop your application, restrict user access, test your security controls.
As @polynomial says above, your question is very broad. Look at guidance from the above sites and identify what will work for your requirements.