[rymax99]

Tutorial is okay, gives basics, but there are tons of more things to do. For the most part, if all you have running on the box is a SA-MP server, all you have to worry about is making sure your host can handle layer 4 floods. However, if you run multiple services, you have to make sure for example a layer 7 flood against your web server isn't going to occupy all of your resources. This is where separating your services into different servers really comes into handy.

A proper setup to protect against DDoS attacks, and being able to identify attacks takes experience and tons of knowledge.