guacamole.conf

server {
         listen 80;
         server_name guacamole.eddienetworks.ddnsfree.com *.guacamole.eddienetworks.ddnsfree.com;
         return 301 https://$host$request_uri;
}

server {
        listen [::]:443 ssl; # managed by Certbot
        listen 443 ssl; # managed by Certbot
        ssl_certificate /etc/letsencrypt/live/eddienetworks.ddnsfree.com/fullchain.pem; # managed by Certbot
        ssl_certificate_key /etc/letsencrypt/live/eddienetworks.ddnsfree.com/privkey.pem; # managed by Certbot
        include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
        ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot

        server_name guacamole.eddienetworks.ddnsfree.com *.guacamole.eddienetworks.ddnsfree.com;

        location / {
                proxy_pass http://192.168.1.100:15000;
                proxy_buffering off;
                proxy_http_version 1.1;
                proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
                proxy_set_header Upgrade $http_upgrade;
                proxy_set_header Connection $http_connection;
                access_log off;
        }
}