General/Techie

  

General/Techie

by Craig Mayhew



Hacking AWS CloudFront Pricing


Cloudfront has a complex pricing structure. AWS charge you based on bandwidth used, number of requests, region serving the traffic, and the protocol used. HTTPS requests are typically 1/3 more expensive than…




DNS, the original CDN


The Domain Name System has been around since the 1980s, and often doesn't get credit for how abundent and efficient it is. Most people know it as a way to translate website address such as craig.mayhew.io into an ip…




My Reprap Mendel


In 2010 when Beth and I started building the reprap, we anticipated it would take us a month or two. We we're wrong. We had almost no tools, no work space and limited engineering knowledge. Sometimes because work was…




Economics of SETI on AWS spot instance


I needed an excuse to use spot instances on AWS to test them for some upcoming projects. I chose SETI and I have to say it was a nice simple experience. It took about 30 minutes to build the linux VM, set it up with…




New blog - using tiny php framework and mongodb


I have replaced my ancient wordpress blog with a lean custom php framework. The blog entries, tags, categories and comments are now stored in mongodb rather than mysql. This has speed advantages in the case of a high…




ZFS on FreeBSD


For this test I will be running FreeBSD in a VirtualBox virtual machine. These instructions will work regardless of this.Download the 64bit iso of FreeBSD. I am using version 9.1.Install FreeBSD form the livecd. I…



AWS   CloudFront   DNS   CDN   RepRap   Mendel   3D printer   AWS   SETI   mongodb   ZFS  


© 2018 Craig Mayhew