أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.
Very good question.
For network your strategy should be : Using Firewall and IDS
For Linux/Unix based system and servers: You can use customized script.
Basically the principle is : limit the rate of packet so that your network can not be flooded.
I hope the following link(Cisco's white paper) will help you much: