A graphical visualization of how PCs boot into OpenBSD.
It shows which files are related to each step, in which order things are read/executed and a human readable list of the operations done by /etc/rc up to the point where you can log in to your system and your personal customizations start.

OpenBSD Jumpstart is a short and exhaustive presentation for new OpenBSD users. All is there to be able to start quickly.

share your local web app site easy over internet tunnel

Lynis is a battle-tested security tool for systems running Linux, macOS, or Unix-based operating system. It performs an extensive health scan of your systems to support system hardening and compliance testing. The project is open source software with the GPL license and available since 2007.