"NAT" tag
Marching packets

Cyber Attacks Explained: Packet Spoofing

Last month, we started this series to cover the important cyber attacks that impact critical IT infrastructure in organisations. The first was the denial-of-service attack, which we discussed in detail. This month, we…

Linux Virtualisation Roundup

VMWare Player, VirtualBox, KVM: Finding Virtualisation Software that Fits

This article is intended to guide users in choosing the best virtualisation solution for themselves. According to Wikipedia: “Virtualisation, in computing, is the creation of a virtual (rather than actual) version of something,…

Securing Database Servers

Securing Database Servers

With the ever-expanding data requirements for Web applications, database administrators often configure security parameters at the OS and database layer. Unfortunately, administrators seldom consider implementing security at a network layer to protect the…

Android and SSH

Accessing a Home Laptop Remotely from Android

Consider this: You’re on vacation in the Maldives, when your office calls, with an urgent request for some files and information. These happen to be on your laptop, which is at home! If…

Building a Server from Scratch, Part 2: Firewalls, Port Forwarding, NAT, DHCP & TFTP

Last month, we built a server using off-the-shelf hardware. This time, let’s set up some essential server services.

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