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FortiGate DoS Protection - Block Malicious Traffic Before It Affects Critical Applications and Systems

Denial of Service (DoS) attacks have been a part of the internet landscape for years. There have been some high profile DoS attacks recently, but attackers today are deploying fundamentally the same techniques as those employed over a decade ago. With the ascendance of Botnets and Crimeware-as-a-Service in the threat landscape, the ability to employ a botnet to launch a DoS attack is relatively simple.This white paper describes common DoS techniques, such as TCP SYN, UDP, and ICMP floods. It also explains the technology integrated into every FortiGate consolidated security platform that helps in blocking these common DoS attacks, the DoS Sensor. This feature, included in the FortiOS operating system, uses network traffic anomaly detection to identify a DoS attack. It can detect 12 types of network anomalies: TCP SYN floods, UDP and ICMP floods, UDP scans, TCP port scans, TCP, UDP, and ICMP source and destination session attacks, and ICMP sweep attacks. The paper also offers suggestions on how to prevent an organization's network from being used to attack another organization.

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FortiGate DoS Protection - Block Malicious Traffic Before It Affects Critical Applications and Systems

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Not only is the volume of email traffic rising but with it, the complexity of malware with the presence of blended threats combining spam, viruses, worms and spyware. To help ensure optimum service and security for our customers, we needed an effective multi-layered solution that combined antivirus, anti-spam and anti-spyware technologies in one appliance. FortiMail met our performance requirements while providing ease-of-use and management to our IT team which is essential as we do not have the time or resources to deploy and maintain separate point solutions.

Gunther Fischer
Head of Product and Service Enabler for the IT & Networks business unit
H3G Austria