https://gist.github.com/TimWolla/457c45dfccde26fc674dde4b3c7...
I could not test it with the Signal client yet, because the Beta is not yet available for me. However I verified that the nested TLS works using openssl and netcat.
Looking into their repo, they also appear to be building an nginx image from docker.io/ubuntu:20.04 instead of using docker.io/nginx. They are also running two separate nginx processes. I wonder how they ended up with this weird intricate setup.
I would be glad to help if they offered straightforward instructions.
Also the way they’ve done it makes it incredibly easy for anyone who isn’t a tech expert with a web server to still help out with a $5 domain and a $5 VPS. You literally run three commands and it’s done.
They want as many people as possible running these so blocking them all is as difficult as possible. It’s the smartest approach to have a low barrier to entry for something like this.