hns_doh_loadbalancer/nginx.conf

server {
  listen      8001 default_server;
  server_name _;
  location / {
    proxy_pass       https://doh.hnshosting.au;
    proxy_set_header Host doh.hnshosting.au;
  }
}

server {
  listen      8002 default_server;
  server_name _;
  location / {
    proxy_pass       https://easyhandshake.com:8053;
    proxy_set_header Host easyhandshake.com;
  }
}

server {
  listen      8003 default_server;
  server_name _;
  location / {
    proxy_pass       https://doh.hnsdns.com;
    proxy_set_header Host doh.hnsdns.com;
  }
}

upstream main {
  server 127.0.0.1:8001; 
  server 127.0.0.1:8002;
  server 127.0.0.1:8003;
}

server {
  listen      80;
  server_name _;
  location / {
    proxy_pass http://main;
  }
}