Our Redmine install died, We all cried!
A fresh Redmine 2.x install on Ubuntu 12.10 with Ruby, Apache, Passenger and MySQL, written after an upgrade went comprehensively wrong.

A fresh Redmine 2.x install on Ubuntu 12.10 with Ruby, Apache, Passenger and MySQL, written after an upgrade went comprehensively wrong.
Remote-debugging a PHP CLI script on a LAMP virtual machine from PHPStorm: server path mappings, Xdebug settings and the environment variables.
Installing and configuring NRPE on Ubuntu so an existing Nagios or Icinga server can run remote checks, including custom command definitions.
Compiling Apache 2.4 from source on Ubuntu 12.04 when no package exists: the configure flags, the event MPM, and the bits that bite.
A reference recipe for compiling PHP 5.4 from source on Ubuntu 12.04: the full apt dependency list and the complete configure line.
Using the rsync -e flag to supply a custom SSH command, so rsync can reach a server whose SSH daemon is not on the default port.
Registering custom view helpers in a Zend Framework 2 module through the view_helpers and invokables configuration arrays, with an example.
Custom Zend Framework 2 view helpers that render ZF2 forms with Twitter Bootstrap markup, without hand-writing the HTML for every field.
Distributed load testing with Apache JMeter on EC2: build a reusable AMI running jmeter-server, and fix the NAT and RMI hostname problems.