ok, I just needed to change owner to turnserver for certs and directories. That's all

-rw-rwxr-- 1 root certgroup 2864 Jul 14 01:07 fullchain1.pem
-rw-rwxr-- 1 root certgroup  241 Jul 14 01:07 privkey1.pem

What if I have such permissions, but coturn still can't access to files?

thx, I think that I found what I was looking for: https://content.minetest.net/packages/joe7575/techage_modpack/

it's okay

thumb-key

I can't((

thx

up to 100$

I know the linux basis. That's all.

what would you recommend to a newbie?

How?

I agree, I just don't understand why I can't do it myself.