I’ve been working with Varnish for a while, but if you’re getting started or considering it, this introduction to Varnish video is really worth watching: it explains everything you need to know and illustrates what you can do with Varnish.
Docker is a very cool tool to manage Linux Containers.
Interesting podcast about monitoring in near-realtime and the faults of threshold-based monitoring
OpenTSDB is a distributed, scalable Time Series Database (TSDB) written on top of HBase. OpenTSDB was written to address a common need: store, index and serve metrics collected from computer systems (network gear, operating systems, applications) at a large scale, and make this data easily accessible and graphable.
Una tabella riassuntiva con tutti i codici di redirect di Bash
Posting it as a reminder: if you need to write an init script for a cluster service, make sure that your return codes are LSB-compliant!