404 error only on folder with name "acme-challenge"

Hi @dzseti

are there other rewrite rules? Please share your complete config file.

Do you have firewall rules?

You have a header

Server: CentOS WebPanel: Protected by Mod Security

download http://uniofilm.online/.well-known/test/text.txt -h
Keep-Alive: timeout=5, max=100
Connection: Keep-Alive
Accept-Ranges: bytes
Content-Length: 6
Content-Type: text/plain
Date: Thu, 30 Aug 2018 08:09:02 GMT
ETag: "6-57497a6a0e800"
Last-Modified: Wed, 29 Aug 2018 19:06:08 GMT
Server: CentOS WebPanel: Protected by Mod Security

Status: 200 OK

Is there a special filter?