i wrote a blog post about how i locked a service down with systemd and a few util-linux tools. As it turns out, it's surprisingly easy to think about, but rather involved to implement fully.
don't rely on centralized data-collecting services for ssl test, use testssl.sh (https://github.com/drwetter/testssl.sh) instead. also supports alls kinds of protocols and ports that are not HTTP!
has anyone set up a #matrix server and has some tips on how to do that?
chaos.social - because anarchy is much more fun with friends.
chaos.social is a small Mastodon instance for and by the Chaos community surrounding the Chaos Computer Club. We provide a small community space - Be excellent to each other, and have a look at what that means around here.
Follow @ordnung for low-traffic instance-related updates.
The primary instance languages are German and English.