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NOTE: Assumes using a Debian-based OS.

First, install nginx and rtmp module

sudo apt-get install libnginx-mod-rtmp nginx

Edit your /etc/nginx/nginx.conf

Below, change yoursite.org to your site's DNS domain.

Also, change <YOUR-IP-ADDRESS> to your IP will be streaming to the server from (aka home IP).

load_module modules/ngx_rtmp_module.so;
worker_processes auto;
#rtmp_auto_push on;
events {
        worker_connections 1024;
        multi_accept on;
}

rtmp {
        server {
        listen 1935;
        listen [::]:1935 ipv6only=on;
        chunk_size 4096;
        allow publish <YOUR-IP-ADDRESS>;
        deny publish all;

        application live {
            live on;
            hls on;
            hls_path /video/hls;
            record off;
        }
    }
}
http {
    server {
        server_name yoursite.org www.yoursite.org;
        listen 80;

        # Static website
        location / {
        root /var/www/html;
        index index.html;
            }

        location /hls {
            types {
                application/vnd.apple.mpegurl m3u8;
            }
            root /video;
            add_header Cache-Control no-cache;

            # To avoid issues with cross-domain HTTP requests (e.g. during development)
            add_header Access-Control-Allow-Origin *;

        include /etc/nginx/conf.d/*.conf;
        include /etc/nginx/sites-enabled/*;

        }
    }
   server {
        server_name yoursite.org www.yoursite.org;
        listen 443 ssl;
        listen [::]:443 ipv6only=on;

        ssl_certificate /etc/letsencrypt/live/yoursite.org/fullchain.pem; 
        ssl_certificate_key /etc/letsencrypt/live/yoursite.org/privkey.pem; 
        include /etc/letsencrypt/options-ssl-nginx.conf;
        ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; 

        # Static website
        location / {
        root /var/www/html;
        index index.html;
            }
        location /hls {
            types {
                application/vnd.apple.mpegurl m3u8;
            }
            root /video;
            add_header Cache-Control no-cache;

            # To avoid issues with cross-domain HTTP requests (e.g. during development)
            add_header Access-Control-Allow-Origin *;

        }
    }
}

Make sure port 1935 is accessible to with world or at least <YOUR-IP-ADDRESS> provided. Also be sure the path for the stream is valid where in config is now /video.

Be sure also to get a new SSL certificate from LetsEncrypt/Certbot and edit the SSL config portion above.

In OBS, set the stream URL to rtmp://server-IP:1935/live

For the stream key, choose what the .m3u8 will be called, like stream for this example.

Start streaming something in OBS and on a mobile device using a carrier connection open https://yoursite.org/hls/stream.m3u8

If all is working as expected should see the test stream! You are now streaming without using Cloudflare or another walled garden network.

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