Unixes

This is a catalog of things UNIX-like/POSIX-compliant operating systems can do atomically, making them useful as building blocks for thread-safe and multi-process-safe programs without mutexes or read/write locks. The list is by no means exhaustive and I expect it to be updated frequently for the foreseeable future.

Using a Yubikey as smartcard for SSH public key authentication

I first posted my notes on using OpenBSD as my workstation in of 2013, but I probably switched from Arch Linux in 2005. This is a collection of customizations I have used for over the years, as well as some hints for using some of OpenBSD's more modern features.