Nginx virtual host not working - php

Question

I'm hosting a PHP system on my localhost, I created index.php in the /var/www/html like this:
// /var/www/html/index.php
<?php
phpinfo();
And when I access localhost:80 it's showing up my PHP configurations info.
But when I cloned /etc/nginx/sites-available/default to /etc/nginx/sites-available/superstore and changed server_name it's not working after sudo service nginx restart, even sudo service nginx status is returning success.
My nginx config (/etc/nginx/sites-available/superstore) is like this:
server {
listen 80;
root /var/www/html;
index index.php index.html index.htm index.nginx-debian.html;
server_name superstore.dev;
location / {
try_files $uri $uri/ =404;
}
location ~ \.php$ {
include snippets/fastcgi-php.conf;
fastcgi_pass unix:/run/php/php7.0-fpm.sock;
}
# deny access to .htaccess files, if Apache's document root
# concurs with nginx's one
#
location ~ /\.ht {
deny all;
}
}
My PHP version:
Nginx status after restart:
I added this virtual host to my /etc/hosts like this:
127.0.0.1 superstore.dev
But when I try to access superstore.dev it's returning this error to me:
I installed PHP and Nginx by following command on Ubuntu 16:
sudo apt install nginx php7.0-fpm -y
And I'm sure that I already symbolic linked superstore config file to sites-enabled folder.
Why my virtual host is not working?

Answer 1

Similar to Apache config scheme, folder sites-available is supposed to contain all your config files, even the ones you don't want to run.
There is a second folder, sites-enabled, that contains symlinks to the config files you want to run.
To create the symlink run ln -s /etc/nginx/sites-available/superstore /etc/nginx/sites-enabled/ and then service nginx reload
For more info see answer https://serverfault.com/a/424456/240702