MQTT for monitoring (and for the IoT)
MQTT is a PUB/SUB protocol for the Internet of Things, but it's also valuable for systems administration. We'll take a close look at MQTT and its infrastructure, and we'll show you how to use a microcontroller to monitor your server-room's temperature with it, publishing and monitoring it via MQTT and Icinga/Nagios.
Jan-Piet Mens is an independent Unix/Linux consultant and sysadmin who's worked with Unix-systems since 1985. Jan-Piet does odd bits of coding, and has architected infrastructure at major customers throughout Europe. One of his specialities is the Domain Name System and as such, he authored the book Alternative DNS Servers as well as a variety of other technical publications. (http://mens.de)