M. Syaiful Huda Mubarok 2025. Implementation of a Network Security System Against SYN Flood Attacks and Unauthorized Access Blocking Using Firewall Filtering in the IT Service Department of PT Pupuk Sriwidjaja Palembang. Jurnal Jaringan Komputer dan Keamanan. 6, 2 (Nov. 2025), 78-86. DOI:https://doi.org/10.61346/jjkk.v6i2.242.