I run a Java-Server behind a NGINX proxy. I use a Java Server Socket extansion, but this don´t change the working. I use the proxy because i want to join the server via a domain. If i use the normal ip-adress from my server everything work fine, but if i want to use the domain it gives me errors. I think the problem is the configuration of nginx.

proxy_set_header Upgrade  $http_upgrade;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header Host $http_host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-NginX-Proxy true;
proxy_redirect off;

this are some settings i tried but it don´t work. I found in different sources these commands.

super("subdomain.domain.de", 80, 5000, false, false, "login", "test");

this is my Constructor for the Client. nginx listens in port 80 and root to 8181.

java.io.StreamCorruptedException: invalid stream header: 48545450

This is the error i got on the client.

Maybe somebody know, how to configure nginx that this work.

What settings do i need and where to store/ add.