Troubleshooting

Nginx Reverse Proxy Config

upstream ssm {
    server <SSM IP>:3000;
}

server {
    root /var/www/html;
    index index.html index.htm index.nginx-debian.html;
    server_name <WEBSITE HOSTNAME>;

    location / {
        proxy_pass http://ssm/;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection 'upgrade';
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Fowarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Fowarded-Proto $scheme;
        proxy_cache_bypass $http_upgrade;
    }

    add_header Strict-Transport-Security "max-age=31536000" always; # managed by Certbot


    listen 80;

}

Getting a EACCES on http://0.0.0.0:3000 on Windows?

First open powershell as a admin and check to see if windows has allocated the port using the following command:

netsh interface ipv4 show excludedportrange protocol=tcp

You will get a response simular to the one below:

Start Port    End Port
----------    --------
      1587        1686
      1787        1886
      1987        2086
      2931        3030
     50000       50059     *

As you can see the 2nd to last record windows has allocated ports 2931-3030 for something this conflicts with SSM default port of 3000

To fix this run the following commands:

net stop winnat
netsh int ipv4 set dynamic tcp start=49152 num=16384
netsh int ipv6 set dynamic tcp start=49152 num=16384
net start winnat