If you are facing problems with hackers or attacks on your server then you are in a very bad situation.
Simply you can't stop a hacker, But you can minimize the attacks.
Never challenge a hacker!
Because if you do, He will call his brothers, sisters and their friends and they will get you down.
The best thing you can do is taking good care of your security.
Make sure that your server don't reveal too much information and configure a good firewall.
In my next post I will show you how you can configure a simple firewall to block unwanted traffic and how to hide your server information.