

Bash scripting, firewall config, vpn tunnelling, and containerization ( rootless Podman ).
I’m into combining these in interesting ways.
While it could be argued that there are tons of communities for these, combining them to run secure apps or automate their setups don’t seem to be as popular.
It’s a hot topic at social events, as you can imagine.
That sounds a bit ambiguous, though I should have prefaced my previous comment with the fact that I am still very much learning about this stuff myself.
More recently, I am trying to wrap my head around containerized VPN connections through WireGuard using gluetun. The idea sounds great, in theory. Figuring out how to make it work will probably be less so.
If you mean just accessing a service through VPN from the outside world, then I might be able to help.
I’ve done it successfully a few times. Most of the issues I have ever had were usually with misconfigured firewall rules around NAT.