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pfSense: Adding firewall rules to filter services

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

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

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

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

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