Monit is a slick configurable monitoring tool that’s easy on resources.
How to backup the system with incremental updates with rsync.
Here’s how you save precious write cycles and use ntpd instead of systemd-timesyncd.
A thorough how-to for installing the headless Java and Serviio DLNA server.
How to replace a DHCP router with dnsmasq and speed up DNS queries with a caching local DNS server.