Nginx not showing railsapp but instead showing Plesk default page

I’ve been trying to get my vps to run my railsapp according to this tutorial: https://gorails.com/deploy/ubuntu/16.04

The setup is to make a deploy server where I can deploy my rails app thru using ssh. Much like deploying to Heroku would go.

At this point everything seems to be running without any errors.
Nginx shows this.

deploy@localhost:~$ sudo service nginx status
[sudo] password for deploy: 
● nginx.service - A high performance web server and a reverse proxy server
   Loaded: loaded (/lib/systemd/system/nginx.service; enabled; vendor preset: enabled)
   Active: active (running) since Mon 2018-04-16 21:06:26 CEST; 11h ago
  Process: 1670 ExecStop=/bin/sleep 1 (code=exited, status=0/SUCCESS)
  Process: 1666 ExecStop=/sbin/start-stop-daemon --quiet --stop --retry TERM/5 --pidfile /run/nginx.pid (code=exited, status=0/SUCCESS)
  Process: 1677 ExecStart=/usr/sbin/nginx -g daemon on; master_process on; (code=exited, status=0/SUCCESS)
  Process: 1674 ExecStartPre=/usr/sbin/nginx -t -q -g daemon on; master_process on; (code=exited, status=0/SUCCESS)
 Main PID: 1680 (nginx)
    Tasks: 3
   Memory: 7.0M
      CPU: 69ms
   CGroup: /system.slice/nginx.service
           ├─1680 nginx: master process /usr/sbin/nginx -g daemon on; master_process on
           ├─1681 nginx: worker process                           
           └─1682 nginx: worker process                           

Apr 16 21:06:26 localhost systemd[1]: Starting A high performance web server and a reverse proxy server...
Apr 16 21:06:26 localhost systemd[1]: Started A high performance web server and a reverse proxy server.

But for some reason in the browser when I go to the ip-address of my server I get a default page by Plesk. Which a standard web platform installed on my Linux Ubuntu 16.04 server.

I reckon that /etc/nginx/sites-enabled/default must be where the problem might be. This is how looks like now:

server {
        listen 80;
        listen [::]:80 ipv6only=on;

        server_name mydomain.com;
        passenger_enabled on;
        rails_env    production;
        root         /home/deploy/palazon/current/public;

        # redirect server error pages to the static page /50x.html
        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }
}

Then I found that there’s also /etc/nginx/sites-available/default which would normally show the default nginx page. This is how it looks like:

##
# You should look at the following URL's in order to grasp a solid understanding
# of Nginx configuration files in order to fully unleash the power of Nginx.
# http://wiki.nginx.org/Pitfalls
# http://wiki.nginx.org/QuickStart
# http://wiki.nginx.org/Configuration
#
# Generally, you will want to move this file somewhere, and start with a clean
# file but keep this around for reference. Or just disable in sites-enabled.
#
# Please see /usr/share/doc/nginx-doc/examples/ for more detailed examples.
##

# Default server configuration
#
server {
        listen 80 default_server;
        listen [::]:80 default_server;

        # SSL configuration
        #
        # listen 443 ssl default_server;
        # listen [::]:443 ssl default_server;
        #
        # Note: You should disable gzip for SSL traffic.
        # See: https://bugs.debian.org/773332
        #
        # Read up on ssl_ciphers to ensure a secure configuration.
        # See: https://bugs.debian.org/765782
        #
        # Self signed certs generated by the ssl-cert package
        # Don't use them in a production server!
        #
        # include snippets/snakeoil.conf;

        root /var/www/html;

        # Add index.php to the list if you are using PHP
        index index.html index.htm index.nginx-debian.html;

        server_name _;

        location / {
                # First attempt to serve request as file, then
                # as directory, then fall back to displaying a 404.
                try_files $uri $uri/ =404;
        }


        # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
        #
        #location ~ .php$ {
        #       include snippets/fastcgi-php.conf;

   #
        #       # With php7.0-cgi alone:
        #       fastcgi_pass 127.0.0.1:9000;
        #       # With php7.0-fpm:
        #       fastcgi_pass unix:/run/php7.0-fpm.sock;
        #}

        # deny access to .htaccess files, if Apache's document root
        # concurs with nginx's one
        #
        #location ~ /.ht {
        #       deny all;
        #}
}


# Virtual Host configuration for example.com
#
# You can move that to a different file under sites-available/ and symlink that
# to sites-enabled/ to enable it.
#
#server {
#       listen 80;
#       listen [::]:80;
#
#       server_name example.com;
#
#       root /var/www/example.com;
#       index index.html;
#
#       location / {
#               try_files $uri $uri/ =404;
#       }
#}

And finally this is what /etc/nginx/nginx.conf shows:

user deploy;

worker_processes auto;
pid /run/nginx.pid;

events {
        worker_connections 768;
        # multi_accept on;
}

http {

        ##
        # Basic Settings
        ##

        sendfile on;
        tcp_nopush on;
        tcp_nodelay on;
        keepalive_timeout 65;
        types_hash_max_size 2048;
        # server_tokens off;

        # server_names_hash_bucket_size 64;
        # server_name_in_redirect off;

        include /etc/nginx/mime.types;
        default_type application/octet-stream;

        ##
        # SSL Settings
        ##

        ssl_protocols TLSv1 TLSv1.1 TLSv1.2; # Dropping SSLv3, ref: POODLE
#       ssl_prefer_server_ciphers on;

        ##
        # Logging Settings
        ##

        access_log /var/log/nginx/access.log;
        error_log /var/log/nginx/error.log;

        ##
        # Gzip Settings
        ##

        gzip on;
        gzip_disable "msie6";

       # gzip_vary on;
        # gzip_proxied any;
        # gzip_comp_level 6;
        # gzip_buffers 16 8k;
        # gzip_http_version 1.1;
        # gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript;

        ##
        # Phusion Passenger config
        ##
        # Uncomment it if you installed passenger or passenger-enterprise
        ##


        include /etc/nginx/passenger.conf;

        ##
        # Virtual Host Configs
        ##

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


#mail {
#       # See sample authentication script at:
#       # http://wiki.nginx.org/ImapAuthenticateWithApachePhpScript
#
#       # auth_http localhost/auth.php;
#       # pop3_capabilities "TOP" "USER";
#       # imap_capabilities "IMAP4rev1" "UIDPLUS";
#
#       server {
#               listen     localhost:110;
#               protocol   pop3;
#               proxy      on;
#       }
#
#       server {
#               listen     localhost:143;
#               protocol   imap;
#               proxy      on;
#       }
#}

Does someone know how I keep getting the Plesk default page. My rails app has already been successfully deployed thru capistrano: cap production deploy

I’ve seen that all my app files are on the server. So there’s just one final link missing and I haven’t been able to find it yet. Does someone know what it is?

Thank you for your support.