Design and Build a Network Security System Using Port Knocking, DMZ and IDS Techniques at SMA Negeri 1 Warungkiara

The network security system of SMA Negeri 1 Warungkiara needs improvement to be more effective in safeguarding data integrity and confidentiality. Currently, it only relies on a filter rule security, which is not robust enough fend off hacker attacks. Therefore, advanced techniques such as Port Knocking, DMZ, IDS are required. Knocking serves additional authentication by accessing ports specific sequence prevent unauthorized access. DMZ used isolate the internal from direct detect suspicious activities alert administrator. was tested against various attacks port scanning, DDoS, Ping Death, proven reduce server resource usage 34% 6%. test results show that this provides strong protection preserves confidentiality within school network.