Fix filesystem check message when using Ubuntu EC2 intstance.
Install Docker on Ubuntu 18.04
Demonstration of distributing JS code using Composer.
Enable the PHP opcache
Install PHP Pear
Deploy your own private satis server for private PHP packages.
Install the the ceph-deploy tool for the latest LTS version of Ceph, on the latest version of Debian.
A short guide on creating a GPG master key, before then creating subkeys for it.
A short post on GPG subkeys and why you should use them.
Link your Yubikey with GPG
Change the mode of your Yubikey so that you can use it for PGP/GPG as well.
Fix graphics appearing in the subject line in Thunderbird