Preventing of SYN Flood Attack with Iptables Firewall

Abstract

Denial of services attacks prevents legitimate users from using a service. One particular type of this attack is known as SYN flood, where external hosts attempt to overwhelm the server machine by sending a constant stream of TCP connection request. There are several approaches for dealing with this attack that firewall is one of them. In this paper we attempt to prevent of this attack with iptables firewalls.