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  • Compiling modules for the stock Raspberry Pi kernel

    20 Nov | 14
    • in Raspberry Pi • 
    • by Chris Osborn

    I recently picked up a CoCoSDC board and after assembling it, the first thing I did was load it up with games. I quickly discovered though I wasn’t going to be doing any gaming without a joystick. I don’t own a Tandy CoCo compatible joystick, so I did what any normal person would, I figured out how to convert something I already had: an Atari 2600 joystick. Atari 2600 joysticks are absolutely horrible though, so it didn’t take very long for me to want to go back to my ninepin...

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  • How I Went From 5 Users to 5000 Users Overnight

    23 Oct | 14
    • in Misc • 
    • by Chris Osborn

    I run a small web hosting company called MagicEdit which lets web designers setup a CMS using standard HTML pages. It works great because it gives non-programmers an easy way to create websites that they can give to clients and their customers can edit right in their browser without having to mess with any kind of confusing backend. Yesterday one of our customers complained that some of his sites were loading a little slowly. He had done some investigation and thought maybe there was a problem...

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  • From Zed to Zee

    10 Oct | 14
    • in ZX Spectrum • 
    • in Electronics • 
    • by Chris Osborn

    A while ago I stumbled into a conversation between Eric Nelson and Rod Hull on twitter. Eric was mentioning that for a long time he has wanted to get a ZX Spectrum to add to his retro gaming collection, but living in the US they weren't exactly easy to come by and he also wasn't sure how hard it would be to make one work in the US. I jumped in and somewhat jokingly said that when he gets one I'll have it shipped to my house so he has to come over and play some air hockey. A...

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  • It’s Monday morning and the spam must flow

    30 Sep | 14
    • in Computers • 
    • by Chris Osborn

    During the last month several new spam networks have been flooding my servers. Instead of being just a few IP addresses here and there, they’ve been using huge subnets to send their spam. My old system of banning single IP addresses just wasn’t keeping up. Last week I started working on a new system that would be better able to track messages as they are handled by my mail servers. I run about a half-dozen mail servers for myself and for clients, and I’ve set them all up so...

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  • Making more circuit boards

    11 Sep | 14
    • in Electronics • 
    • in ZX Spectrum • 
    • by Chris Osborn

    A cassette adapter works, but is less convenient It’s been a while since I last made a PCB  but I finally had need to make another circuit board. The board I needed to make this time was a simple circuit that would be installed in a ZX Spectrum +2B which would bring the record and playback lines out to standard headphone jacks so an external source like a smartphone could be patched in instead of having to use one of those cassette adapters. It came about because when the...

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