System administration & DevOps

Most blog entries on SystemD timers give trivial samples. This article takes a different approach and provides the full details of two examples of using SystemD timers that were in active use on my systems. (I now use Alpine Linux which uses OpenRC).

Keeping your DNS queries from your local network to public DNS servers private in transit by using DNS over TLS on a Raspberry Pi is ridiculously easy.

This article details using the XCA GUI for creating private SSL certificates for enabling end-to-end SSL on non-public servers.

About the effort to unify, eliminate duplication, delete those older than my ‘data retention policy’, and organize the rest into yearly archives.

Linux network monitoring presentation circa 2006

This page will describe the steps used to create a custom debian install cd using a partial mirror mostly gathered from a prototype system’s apt cache.

A POSIX-shell queue for msmtp email relay