Simon PainterSomewhere to keep things
I am working on a DHCP migration and it turns out that the people who managed the DHCP server previously weren’t that great at cleaning up old scopes when sites were closed. It’s next to impossible to identify from the number of leases because some of the live sites are only rarely used so I […]
You have probably been directed here because you sent me an email with data volumes quoted in GB/MB/B or Gb/Mb/b inconsistently. Don’t worry, it happens all the time; so often in fact that I wrote this blog post to explain why the difference is important. Network people measure traffic (or bandwidth) in terms of bits […]
I am working on a project that requires me to store publishers and subscribers in a DynamoDB table. As both elements are stored as integers and as I only ever need to find out the subscribers of a publisher (and not the publisher that a subscriber is subscribed to) it’s possible to use a list […]
There used to be a great little website for route summarisation and it did it far more intelligently than Cisco kit does it. It looks like the site has dropped off the internet which is a shame but there is a handy python library called netaddr with has the same capabilities. I have written a […]
I have been looking a lot recently at Avaya H.323 handsets and how they register with Avaya session manager servers. I had hoped at the start of the project that there would be some good quality documentation available to detail the process and specifically how to get it to work through a firewall. The environment […]
I was playing around with some home automation with a Raspberry Pi and needed remote SSH access back to it. There are a bunch of free dynamic DNS providers out there but I couldn’t find one I liked so I made one. http://www.pi-dns.me I won’t go into the ‘how to use it’ because that’s all […]
I wanted to use darksky.net as a quick source for weather forecast data so put together a simple class to get at the properties I needed. As my needs changed I decided to implement the whole (very simple) api. You’ll need an api key but that’s about it. Here’s a few things you can do […]
I have started using Python a lot for day to day tasks and as I use IFTTT quite a lot I needed an class to trigger the webhooks feature to send myself alerts or whatever recipe I choose within IFTTT. To use the class just create a Trigger object with the trigger name and your […]
I use Raspberry Pi for all sorts of little jobs and automation and for this Python is the natural choice. It’s often useful to have your script running as a service and able to automatically start on boot. It’s quite easy to set up a new service using systemd on a Raspberry Pi running Raspbian. […]
Full disclosure: I received some free samples and have worked with the inventor at a former employer. I don’t have any financial interest in the product though. I was quite excited to get my Sergeant Clip samples through as the inventor had told me about them in the past and I have been involved in […]