Tutorial: Writing a simple WordPress plugin from scratch

6th October 2014 by Steve Whiteley

In this introduction to WordPress plugin development, we will create a plugin called Teletype that packages the jQuery Teletype Plugin into a WordPress plugin. Teletype is a jQuery plugin that types out text, and then optionally deletes it, replicating human …

SSL Certificates – Tell Me More…

12th September 2014

An SSL Certificate is a vital component in making sure your website is a safe haven for your lovely customers. It’s the only way you can switch from the regular HTTP protocol to HTTPS. We thought it might be useful …

CatN is proud to have six Certified System Administrators in Red Hat Enterprise Linux OpenStack

16th April 2014

One of our six certified developers, Jorge Serrano, who has successfully passed the rigorous course in Red Hat Enterprise Linux OpenStack, talks about the hands-on training. It has given him practical experience which will enable him to improve our customer …

Platform as a Service billing explained

18th November 2013

In this video Joe Gardiner explains why PaaS is important for reducing cost and waste when compared to dedicated hosting and in particular, infrastructure as a service. IaaS is held up as an excellent solution for saving money by outsourcing …

Five reasons SMEs are not moving to the cloud

30th October 2013

Despite the growth in adoption of cloud services there are still plenty of businesses resisting a move. We see a lot about large enterprise having concerns about security and sovereignty of data but what are the reasons SMEs are giving …

95th Percentile Billing – An Explanation

13th September 2013 by Huw Davies

As a hosting provider, one of the most important components of our services is the ability for customers bandwidth to be burstable. Customers will usually commit to a committed data rate (CDR) each month as their baseline level of traffic, …

Racing to launch with ArduSat

24th June 2013

A few months ago CatN became the sole platinum sponsor of the ArduSat satellite project on Kickstarter. ArduSat is an Arduino powered satellite which allows the general public to design and run their own experiments in space. There’s a huge …

OpenSSL CSR Generation Wizard

19th June 2013

Generate an SSL Certificate Signing Request (CSR) and RSA Private Key in a single command by entering your details below.

Generating a CSR with Apache OpenSSL

17th June 2013

CatN have been offering hosting services for a number of years now, with one common request from our customers being the ability to provide and install SSL Certificates for their hosting products. The first stage in the process is to …

Working with Virtual Machine images

7th June 2013

CatN engineers spend a lot of time working with virtual machine images. We have put together this useful list of commonly used commands and procedures to help you get started on your next project. For simplicity we assume to work …

Add a virtual storage device to a Virtual Machine

5th June 2013 by Nicola Asuni

Following our previous article about resizing virtual machine images, we now look adding an additional storage device to an existing VM. If instead you wish to extend the existing VM storage volumes, please consult the article “Resize a CentOS Virtual …

Resize a CentOS Virtual Machine Image

3rd June 2013

Following our series of articles about virtual machine images, we now look at a common problem faced by system engineers – what happens when you run out of disk space on your virtual machine? This guide addresses this issue and …

Automated CentOS Virtual Machine Image Creation

28th May 2013

This article shows how to create a CentOS Virtual Machine (VM) in unattended mode using a shell script and illustrates the main steps and options to reproduce the process manually. The following script and commands will create a base image …

Top posts on CatN.com

6th May 2013

With the CatN website and blog just over four years old, we have reviewed all of our content to find the top five most popular posts over the last four years. We’ll start with number 5 on the list. The …

Access Control – Are you in or out?

29th April 2013

As CatN continue on our journey towards ISO 27001 accreditation, part of the information security policy requires that we have an active and enforced security model in place at our office location. Since introducing an access control system in June …

Advanced PHP error handling in the cloud

8th April 2013 by Nicola Asuni

LogPipe is a PHP extension module that extends the default PHP error messages with additional information and allows you to pipe the logs to an external program or write them to a syslog facility. When a user connects to a …

Is ‘Metal as a Service’ too heavy for the cloud?

3rd January 2013

Metal as a Service is a new layer in the stack under IaaS and is described by Mark Shuttleworth as, “…bringing cloud semantics to the bare metal world.” Essentially MaaS supplies bare metal that can be deployed similarly to cloud …

T minus 1 year and counting – is your router about to go boom‽

16th October 2012 by Mark Sutton

In approximately one year’s time, the global routing table will grow past the magic 512000 prefix mark and render millions of routers unable to carry the global routing table. If you operate a router with BGP on a public AS …

MySQL Best Practices

13th September 2012

Do you know how to best design a MySQL database, or how to best structure a MySQL query? If not then this post will certainly interest you. Here we will be discussing the best MySQL practices you can use not …