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Stewart's Blog

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Archive for the 'networking' Category

Mobile broadband on Ubuntu Linux – O2 ZTE MF100

Saturday, October 30th, 2010

I’ve already provided details on how to get O2 Mobile Broadband Pay As You go on Ubuntu Linux with Huawei E160. I have now got a new dongle created by the ZTE Corporation known as the ZTE MF100 HSDPA USB Stick. The process to get this new dongle working is just as easy as with […]

Dropbox – Keeping files in sync across computers, and across the Internet – Linux, Windows and Mac OSX

Wednesday, February 3rd, 2010

Dropbox provides a folder on your computer, which can be shared across multiple computers, across multiple operating systems, across the Internet or a LAN. If you ever need to access your files across multiple PCs then you need Dropbox! I was a little sceptical when I first heard of Dropbox. My first thought was that […]

Firstaidquiz.com website outage

Saturday, November 7th, 2009

The first aid quiz website has been down for a couple of days. I only realised yesterday when checking on the site. It appears that my hosting provider Compila.com had forgotten to renew my domain registration so my DNS entry had expired. I’m going to look at creating a server status page that can be […]

Linux Apache Virtual Hosts (vhosts)

Monday, October 19th, 2009

Virtual Hosting is the ability to run several different websites on the same server. There are a number of ways that this can be achieved,
using different port numbers for the webservers (instead of the default port 80); using different IP addresses aliased to the same server; or by using the information contained int the http header to determine which site the user is trying to access.

Embedded Linux – Are you already a Linux user?

Wednesday, October 7th, 2009

There are now more and more people discovering Linux as a real alternative to running Windows on our desktop computers. This may be because Linux is Free as in money (you have to buy Windows), it maybe that they’ve bought a netbook with Linux installed, it may be because of the frustrations of working with […]

Linux – using a network time server (ntpd)

Sunday, September 20th, 2009

The network time protocol is a means to synchronise time clocks of devices over the Internet. As well as being a convenient way to make sure your PC shows the correct time it is often used to ensure that the time of servers and routers are in synchronization. This is particularly important for database transaction logging, stock related transactions, security logging and analysis, network monitoring and other time critical applications.

Simple Intrusion Detecion Rules for Apache (Apache mod_rewrite & PHP based Intrusion Detection System IDS)

Wednesday, September 9th, 2009

This is a document I created a while ago. I’m redesigning the Watkissonline site that this was previously stored on, but I wanted to keep this information. It’s kept more as an academic exercise. It could be used as a basic IDS notification system or as a module for a more complex solution, but I […]

Review of O2 Mobile Broadband USB dongle

Friday, September 4th, 2009

I have bought a pay-as-you-go O2 Mobile Broadband USB Dongle to provide broadband connectivity whilst away from home. The first part was in purchasing this which was not a particularly pleasant experience. This is not a fault of O2, but of the retailer Phone 4U who I will not be buying from again Mobile Broadband […]

Using O2 Mobile Broadband under Ubuntu Linux – Huawei E160

Sunday, August 30th, 2009

These instructions work for getting a O2 Pay-as-you-go Mobile Broadband USB stick to work under Ubuntu Linux. I also tested this using EEEbuntu on the Eee PC. The device that I tested is a Huawei Mobile Connect Model E160, HSDPA USB Stick. Most current models should work, but Huawei do not provide any official Linux […]

Network cabling lengths

Wednesday, April 22nd, 2009

During my day job I often have to arrange for network cabling spanning large distances within a data centre. As our data centre space is getting bigger and occupying more of the building we are hitting these problems more. Here is a rough guide to the maximum lengths of some popular cable types. These are […]


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