Based on the technology of the protection against malicious web sites and the SDN (software defined networks), this paper puts forward a protection system against malicious web sites based on the SDN. Several experiments are conducted to verify the performance of each module of the system. The system is applied to a real campus network environment. And the testing results show that our system can effectively prevent malicious web sites and provide a good support against malicious attacks.

software defined network  /  malicious web site  /  SDN  /  malicious URL  /  future internet