Bulletin of Computer Science and Electrical Engineering
Vol. 1 No. 2 (2020): December 2020 - Bulletin of Computer Science and Electrical Engineering

TCP SYN Flood (DoS) Attack Prevention Using SPI Method on CSF: A PoC

I Putu Agus Eka Pratama (Department of Information Technology, Faculty of Engineering, Udayana University, Bali, Indonesia)

Article Info

Publish Date
07 Aug 2020


TCP SYN Flood as one kind of Denial of Service (DoS) attack, still popular to flood the server connection, by sending SYN packets to the target. Because of the risk caused by this attack, there is a need for a network security mechanism. In this paper, one of the security mechanisms proposed is using Stateful Packet Inspection (SPI) method on Configserver Security and Firewall (CSF). By using SPI method, CSF has capabilities to responsible for separating packets of data, that may be entered with data packets that should not be entered into the server. For example: port to be opened, port closed, and IP Address that may access the server for anywhere. This paper combines both of CSF and SPI method to prevent TCP SYN Flood (DoS) with Proof of Concept (PoC) at the Linux operating system. The security process is done in 3 ways: configuring a maximum connection from an IP Address to a server, securing an incoming SYN packet per second, and counting how many times an IP Address violates the minimum SYN packet rule per second before being blocked by a firewall.

Copyrights © 2020

Journal Info





Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering


Bulletin of Computer Science and Electrical Engineering (BCSEE) (e-ISSN: 2722-7324) is a biannually peer-reviewed open access journal that covers the leading-edge subjects and matters in computer science, information systems, and electrical engineering disciplines. The Journal stresses on academic ...