Since ages I wanted have replaced this freaking backup solution of our Network Equipment based on some hacky shell scripts and expect [https://en.wikipedia.org/wiki/Expect] uploading the configs on a TFTP [https://en.wikipedia.org/wiki/Trivial_File_Transfer_Protocol] server. Years ago I stumbled upon RANCID…
In some cases it might be a good idea to use a reverse proxy [http://en.wikipedia.org/wiki/Proxy_server] in front of a web application. Nginx [https://en.wikipedia.org/wiki/Nginx] is a very common solution for this scenario these days. As I started with containers for…
In case you ever wanted to look at Icinga2 [http://www.icinga.org/icinga/icinga-2/], even into distributed [https://www.icinga.org/icinga/icinga-2/distributed-monitoring/] features, without messing with installing whole server setups, this might interesting for you. At first, you need to have a running Docker on your system.…
When I was thinking about using Ghost [http://ghost.org], I did read the installations guide [https://github.com/TryGhost/Ghost#quick-start-install] and then I just closed the browser window. I didn't wanted to install npm [http://www.npmjs.com/], yet another package manager, and just hack [http://docs.ghost.…
Exactly 3 years after I moved [https://log.cyconet.org/2013/01/04/new-blogging-engine/] on from Wordpress [http://wordpress.org] to Octopress [http://octopress.org] I thought it's time for something new. Some of you might have noticed that I've not much blogged in the past. A new Octopress version…
Today early in the morning my monitoring system notified me about unusual high outgoing traffic on my hosting platform. I traced the problem down the webserver which is also hosting this abandoned website. Looking into this with iptraf [http://iptraf.seul.org/] revealed that this traffic is coming only from…
Three months ago version 2.0 of Monitoring Plugins [https://www.monitoring-plugins.org/] was released. Since then many changes [https://github.com/monitoring-plugins/monitoring-plugins/compare/v2.0...master] were integrated. You can find a quick overview in the upstream NEWS [https://github.com/monitoring-plugins/monitoring-plugins/blob/master/NEWS]. Now it's…
For an actual project we decided to use Redis [http://redis.io/] for some reasons. As there is availability a critical part, we discovered that Redis Sentinel [http://redis.io/topics/sentinel] can monitor Redis and handle an automatic master failover to a available slave. Setting up the Redis replication…