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Using LetsEncrypt with Ubiquiti Unifi Video server
I’ve spent a lot of time scratching my head trying to get LetsEncrypt, or more accurately certbot working with Ubiquiti UniFi Video server, especially auto-renewing the certificate every month or so. I found two posts on the Ubiquiti…
Read More »1,500,000,000 the Epochening
Don’t forget that at 2:40am, 14 July 2017 (UTC) the Linux epoch will hit 1,500,000,000 (1.5 Gigaseconds). Visit https://www.john.geek.nz/epoch to watch the excitement! It hit 1,000,000,000 back in September 2001 and it won’t hit 2,000,000,000 until May 2033.
Read More »dump1090 binary built for Raspberry Pi / Arm
If you’re after a binary of dump1090 for the Raspberry Pi without having to build it, here’s a compiled binary for you. I built it on Arch linux, but it also works on Raspbian, or likely any other…
Read More »Converting PDF files to HTML on Ubuntu
It’s very easy to convert PDFs to HTML on Ubuntu. The command is pdftohtml
Read More »Downloading routes from a GlobalSat DG-100 with gpsbabel on Linux
This is a GlobalSat DG-100 It’s an amazing piece of Kit, but the software that comes with it is absolutely rubbish. You can download all of the routes (and delete them from the unit) in one simple command…
Read More »Stopping Javascript from resizing the window in Firefox
One of my pet hates on the internet is shopping sites which resize the window when you’re looking at a zoomed in image. Not all of us still use a windowed browser, in fact, most people now use…
Read More »Selective colour replacement with imagemagick
Selective colour replacement is easy from the command line with imagemagick. You can download imagemagick from http://www.imagemagick.org/ The following will replace all red (#FF0000) pixels with blue (#0000FF) convert sourceimage.png -fill "#FF0000" -opaque "#0000FF" destimage.pngconvert sourceimage.png -fill "#FF0000"…
Read More »WordPress Super Cache plugin – Performance Benchmarking
I’ve been doing some performance tests on WordPress to see how much of a difference the WordPress Super Cache plugin made. It turns out that the plugin makes a huge difference.
Read More »WordPress not sending emails on ubuntu – nrcpts=0
So, you’re using sendmail to try and send emails from php/wordpress and it’s not working? Are your mail logs (/var/log/mail.log) showing nrcpts=0 ?? Make sure the sendmail_path in your php.ini file (/etc/php5/apache2/php.ini) is set up correctly. It should…
Read More »WordPress, Permalinks and 404 errors
This page has the permalink /2010/04/wordpress-permalinks-and-404-errors But internally its default URL is /?p=1495. Permalinks help people see the topic of a page before it’s visited and generally mean that search engines will rank them higher too. OK, so…
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