I got a debian 9 Server where I host a webpage with some applications (owncloud, gitlab, seafile).
When trying to access the page from outside I can just call the page itself but when accessing the application over the specified ports I get a timeout.
other-40.umwelt-campus.de:8082 (owncloud) doesn't work
same with just the ip instead of url
Calling it on the host machine itself works fine.