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In this video, Keith Barker explains what TCP syn flood attacks are and how attackers can use them to overload a web server. He also describes how you can use an ASA firewall to prevent these attacks from reaching your critical servers. Finally, he shows you how to test this to make sure it's working properly.

After watching this video, you will not only know what TCP syn flood attacks are, but also how to stop them in an ASA firewall. Keith shows you this by simulating a real syn flood attack on a web server. He then shows you how to easily stop this by limiting the number of half-finished sync requests in ASA using class and policy mappings. This allows the firewall to check sync requests once a certain threshold has been reached and not forward them to the web server until they are fully formed. Finally, he shows how to verify that this is actually happening.

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Start learning with CBT Nuggets:

• Microsoft Windows Server 2012 – Advanced Server Infrastructure Implementation (70-414) | https://courses.cbt.gg/ywj
• Microsoft Windows Server 2012 Administration (70-411) | https://courses.cbt.gg/nsk
• Microsoft MCSE: Core Infrastructure | https://courses.cbt.gg/ttd
• Designing and Implementing Microsoft Windows Server 2012 Infrastructure (70-413) | https://courses.cbt.gg/axk
• All Windows Server 2012 | https://courses.cbt.gg/aeb

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