The little admin guide available at docs.linuxfabrik.ch since 2020-12-01 is not a comprehensive introduction to Linux. It helps us solve many of our daily tasks in a "best practice" way.
The Center for Internet Security (CIS) recommends a partitioning scheme for RHEL and compatible distributions, with several directories like /home, /tmp, /var and /var/log on their own partitions. Using the Logical Volume Manager (LVM) keeps the administrative effort for later resizing manageable.
If you run infrastructure or application monitoring, you really care about three things: a fast and scalable core that schedules checks, manages state changes and sends notifications. A collection of check plugins. A way to visualise performance data. This post is about the middle piece, and why and how we ended up writing our own check plugin collection.
