Sending EMail from the Command Line with Ubuntu Server

In a previous post I wrote about the problems I had encountered while trying to configure my Ubuntu Server to send emails from the command line (actually from a script but it amounts to the same thing). I overcame the problem in the short term by using curl to send messages via Twitter but I really wanted to work out how to end emails instead. Well after a bit more research and some testing I have cracked it 🙂

Keeping OpenDNS Updated with Ubuntu Server

In a previous post I explained how I configued my Ubuntu Server to send a tweet whenever my external IP address changed. Well I found that no only did my external IP address change with startling regularity but it was also causing my OpenDNS settings to become out of sync.

Basically in the house we have a single PC and the rest are laptops. Now I have the OpenDNS updater on the PC and this will syncronise my external IP address with OpenDNS when it is turned on – but what if the IP address changes and that PC is not turned on.? Answer, all my parental controls go out of the window!

Intellisense not working via COM

I recently needed to write a class in C# that would be accessed by a VB6 application – something quite new to me.

The existing VB6 application (which is in the process of being rewritten in C#) currently uses OLE Automation to generate MSWord documents based on templates. While this approach was working fine it was pretty slow. Having made the decision that the new version of the application would be capable of generating Word 2007 documents it was decided that the resulting class should be accessible to the VB6 application via COM Interop.

Upgrading to Windows 7 (Dual Boot with Ubuntu)

I’ve run with Vista for about a year now and on the whole have had no problems with it. Now I’m one of those people that hasn’t really had any problems with Vista – and frankly I’m not sure what all the fuss was about. Yeah, I was happy with XP and only upgraded to Vista because my new employer was using it.

So why was I looking to upgrade to Windows 7 now..? Well there were a number of reasons but the most pressing was that Vista was starting to get on my nerves. So some reason it started to run painfully slow. This was mainly due to the fact that the hard drive would be chattering away for a good 20 minutes after I had logged in – now that’s infuriating! What the hell was it doing.? Well I didn’t really have the drive to spend hours looking for the source so had just lived with it.

When Windows 7 hit Release Candidate I thought – “What the Hell”. If it all went to hell in a wheel barrow then I could either restore my XP system with the CD that came with the laptop or install Vista from the CD I had bought for the upgrade (OEM version purchased with a new HDD).

Tweeting my External IP Address from Ubuntu Server

In my previous post I described the problems I encountered while trying to configure my Ubuntu Server to be able to send emails via the command line (in my case it was actually via a script). The reason I wanted to do this was so that I could run the script on a scheduled basis to check my external IP address and notify me when it changed.

Why? Well my ISP has provided me with a dynamic IP address which changes on a periodic basis – not that I normally notice. Well if I want to be able to administrate my Ubuntu Server from outside my local network, i.e. over the Internet via SSH, then I need to know the outward facing IP address of my router.

I had already found a script to do this and tweaked it a little to run under a non-admin user but while it could detect the change I needed some mechanism for it to tell me. After a fruitless evening trying to set up email I gave up and decided to use the Twitter API instead.