Category: software
Graphing your PowerDNS services with Metronome, part 1
If you’re running PowerDNS recursor, PowerDNS authoritative server or dnsdist, you may wonder how those services are actually doing. You can add a basic ‘service is functional’ check... Read More
Getting your CurrentCost (433MHz) data into OpenHAB using an RTL-SDR dongle and MQTT
CurrentCost? CurrentCost is a UK company founded in 2010 which provides home power measuring hardware. Their main product is a transmitter which uses an inductive clamp to measure power usage of your ... Read More
Installing your centrally managed Let’s Encrypt certificates with a Puppet module
As a follow-up to Centrally managing your Let’s Encrypt certificates using the dns-01 challenge, in this article I’ll post a follow-up for Puppet users on how to distribute those certificates ... Read More
Centrally managing your Let’s Encrypt certificates using the dns-01 challenge
Let’s Encrypt In a previous post, I’ve already briefly touched on Let’s Encrypt. It’s a fairly new but already very well established Certificate Authority, providing anyone wit... Read More
Adding “Let’s Encrypt” TLS to your BitlBee server
BitlBee? Some sort of new transformer? BitlBee is an IRC-to-Instant-Messaging gateway. What this basically means is that you can connect your IRC client to BitlBee, then configure your instant messagi... Read More
Backing up a Subversion repository using svnsync
Why sync an SVN repository? In this article, I will discuss how to back up a remote Subversion repository to a local one. Use case is a (dedicated) backup server that retrieves a full backup copy of a... Read More
Automatically powering your printer down with OpenHAB
Introduction to OpenHAB OpenHAB is an open source, Java-powered Home Automation Bus; what this basically means is it’s a centralized hub that can connect to many systems that have found their wa... Read More
Setting up a Postfix-based relay server with user authentication via Active Directory
In this post I will explain how to setup Postfix authentication against an AD server. This is similar to regular LDAP authentication, I am running a Samba 4.0 domain, but it should work just as well a... Read More