Linux is easily my favorite operating system, having used it for about 15 years. Its come on massively since then and is still being developed to become more stable, universal and efficient. Not only do I think its a brilliant operation system but I also really appreciate the open source nature of it. I have used many versions of Linux, namely Ubuntu, Linux Mint, Debian and Kali.

How to do Port Scanning with Nmap

by Paul Joyce

Network Mapper, usually just known as Nmap, is a powerful yet compact tool to have in your arsenal, giving you the power to explore a network and scan ports of various targets you find. Network and system administrators should know about this tool, its very helpful in debugging certain networking problems. It is however predominantly […]

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How to use Linux’s Traceroute (3 Examples)

by Paul Joyce

Connections over a network often need debugging but due to the nature of the networking-beast, the actual topography of the network may be unknown. Connections are usually perceived as going from A to B, for example your desktop computer connects to Amazons website. To help expose the exact topography of a network we can use […]

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Raspberry Pi Day3: Configuring and connecting securely and remotely with SSH

by Paul Joyce

The other day I managed to mount the Raspberry Pi OS image onto an SD card and the Pi had its first taste of life. Now I’m going to attempt to set-up remote secure connections to the Pi so I can do away with the keyboard, mouse and monitor attached to the experimental hobby PC. […]

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Linux: Changing your password from the CLI

by Paul Joyce

We all know that passwords are some of the most important pieces of information we have to remember, but on top of that we’re told we should change them regularly. This is all well and good, but do you know how to change your Linux password when you can’t get into the X windows manager? […]

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Raspberry Pi Day2: Setting it up

by Paul Joyce

So unlike most of the computer I’ve bought in the past, the Raspberry Pi doesn’t come with its own operating system pre-installed (which actually saves me the time of removing, what is usual, Microsoft Windows). In fact the reason you can’t just plug in the Pi and boot it up first time is that the […]

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Raspberry Pi Day1: Introduction (Model B)

by Paul Joyce

So I finally bit the bullet and purchased a Raspberry Pi. I was hardly quick to jump on the bandwagon as the first model of the Pi came out in Feb last year (2012). I managed to get my hands on the model B version for only ¬£30 from Amazon, quite a bargain even though […]

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Chrome locking up with .pki/nssdb directory error

by Paul Joyce

After re-installing Ubuntu 12.04 back on my laptop I noticed that Google Chrome was quite unstable. I was using version 28.0.3, but every time I opened it up it asked if I wanted to set it as my default browser. Every time I clicked yes. Every time it failed to remember it when I came […]

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Updating Chromium on Debian 6 (Squeeze)

by Paul Joyce

Switching between Ubuntu and Debian machines, you notice the benefits of both system OS’ quite quickly. The first major thing you’ll probably have noticed with Debian 6 (Squeeze) is that its bundled with Chromium. After a bit of use though, you’ll also notice how unstable Chromium is. Lots of web pages freezing up, tabs not […]

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Font Rendering Explained

by Paul Joyce

One aspect of web design that still limits everyday, is the horrendously poor choice of fonts we have at our finger tips. With only a handful of truly system universal fonts at our disposal, its not a surprise that font delivery systems such as Font Squirrel or TypeKit¬†have appeared to fill in the holes. But […]

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How to upgrade Ubuntu to 12.10 – Quetzal

by Paul Joyce

The Quantal Quetzal release date, 18th October 2012, has been and gone, which means we can all upgrade Ubuntu to version 12.10, whoop! Sadly being super busy with work I’ve only just got round to doing it. Quetzal is largely an update to tackle graphical user interface changes, such as iconography, typography and the menu […]

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