Php script to protect sites from ddos attacks L1 L2 L3 L4 L5 L6 L7 level!  

Learn more :   <a href="https://zerocode.su/index.php?threads/ddos-protection-level-l1-l2-l3-l4-l5-l6-l7.30/#post-217">  Ways to protect against DDoS