About: Pingu

Linux & all things Open Source.

Posts by Pingu:

The Potency of SQL Injection – A Technical Perspective

16th August 2010 12:08pm by Pingu posted in Linux

Most web developers know that they should sanitize their web input. However recent figures from the UK Security Breach Investigations Report 2010 indicate that 40 per cent of all website attacks are due to SQL injections. SQL injection attacks allow perpetrators to leak data, usually by making a web application perform a query it wasn’t [...]

Role Based Access Controls in Enterprise Linux 6

16th August 2010 11:18am by Pingu posted in Linux

I’ve been really excited about the potential of Red Hat Enterprise Linux 6 (RHEL6/CentOS6) and the beta has not let me down. Most of the more prominent features are laid out at the Redhat website but one of the things it neglects to mention is how much more access control it comes with.

Measuring Driver Performance in Perf

9th August 2010 10:09am by Pingu posted in Linux

A couple of weeks ago the Linux Kernel 2.6.35 was officially released. For me, this release hasn’t been as exciting as say, 2.6.30 but one thing that whet my appetite was the support for distributed incoming network load. But what’s the fuss all about? Here I demonstrate how spreading incoming network I/O over multiple CPUs [...]

The Unnoticed Internet Milestone

24th March 2010 2:40pm by Pingu posted in Linux

Last month a significant milestone was achieved, but it would have passed by most people unnoticed. The Apache HTTP Server announced its 15th anniversary.

Ubuntu 10.4 (Lucid Lynx) Beta 1 released

24th March 2010 1:01pm by Pingu posted in Linux

This week provides a little extra excitement in the world of Linux. The newest version of Ubuntu (10.4) has been released for testing!

beauty in numbers

19th October 2009 2:22pm by Pingu posted in Linux

Every day I deal with tens of critically important servers. Database servers, web servers, mail servers – pretty much any machine used in a live setup is important, which makes checking the health of the server critical too. Every decent application produces logs, but turning these logs into something that you actually want to check [...]

2 weeks until Karmic Koala (aka Ubuntu Server 9.10)

13th October 2009 1:58pm by Pingu posted in Linux

It’s been planned for months, the changes are all documented and even the next in line is already being worked on. None the less the excitement around the upcoming Ubuntu release is mounting! The new version of Ubuntu brings the usual bug fixes and package updates, but also lots of new software. This release includes [...]

celebration of an Open Source gem

6th October 2009 11:32am by Pingu posted in Linux

Barely a few days ago the most recent version of one of the widest used security applications on the internet was released – OpenSSH 5.3. This little application has now reached it’s 10th birthday, and provides a set of tools which every system administrator who’s worth their salt uses daily. For the uninitiated (catch up [...]

open source – a sign of things to come?

24th August 2009 10:33am by Pingu posted in Linux, UKFast

Traditionally, change is brought about by ideas, contributions, team work and communities. This is no less so in IT. Just a few years ago software and applications were seen as magical entities and few people understood how they worked. This lack of understanding inevitably led to problems like users being locked into applications that vendors [...]

wine – the Linux drink of choice

22nd February 2009 8:09pm by Pingu posted in Linux

So, as my ongoing quest to expand the Linux user base continues, I want to mention the middle ground people often get stuck in. It’s often perceived as a no-mans lands between the two waring sides, however there is a “bridge of peace” between the two so to speak. This comes in the unexpected form, [...]