Пример простой конфигурации реверс-прокси nginx

Прокси через сетевой сокет

server {
    listen 80;
    server_name specialistoff.net www.specialistoff.net;
    access_log /var/log/nginx/specialistoff.net-access.log main;
    error_log /var/log/nginx/specialistoff.net-error.log info;
    location / {
        proxy_pass http://10.0.0.4:8080/;
        proxy_redirect off;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        client_max_body_size 10m;
        client_body_buffer_size 128k;
        proxy_connect_timeout 90;
        proxy_send_timeout 90;
        proxy_read_timeout 90;
        proxy_buffer_size 4k;
        proxy_buffers 4 32k;
        proxy_busy_buffers_size 64k;
        proxy_temp_file_write_size 10m;
    }
}

Прокси через сокет домена Unix

server {
    listen 80;
    server_name specialistoff.net www.specialistoff.net;
    access_log  /var/log/nginx/specialistoff.net-access.log  mainproxy;
    error_log   /var/log/nginx/specialistoff.net-error.log info;
    location / {
        client_max_body_size 10m;
        client_body_buffer_size 128k;
        include uwsgi_params;
        uwsgi_pass unix:///var/run/uwsgi/specialistoff.net.sock;
    }
}

Для проксирования WebSocket (WSS)

location /chat/ {
    proxy_pass http://backend;
    proxy_http_version 1.1;
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection "upgrade";
}