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pfSense: Adding firewall rules to filter services

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pfSense is an open source firewall, router and UTM (unified threat management) distribution based on FreeBSD. This is the third article in the series...

Cyber Attacks Explained: DNS Invasions

4
We often read about defaced websites whose pages get changed to some malicious content. How do hackers do it and how do we protect...

Guard Your Network with IPCop, Part 1: Installation Basics

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The classic version of IPCop 1.4.20, which was released on July 24, 2008, was immediately upgraded to the 1.4.21 ISO installer. The much awaited...

Cyber Attacks Explained: DoS and DDoS

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With this article, we begin a new series on the major kinds of cyber attacks that weaken the IT security infrastructure within organisations. With...