title: Nginx error with configuration wile reverse proxy shows "Welcome to nginx" when starting nginx
body: <p>This is my first time playing around with nginx. I have 2 express servers running in my localhost in port 3001 and 3002. Which is running perfectly.
  I am using ubuntu these are following steps I have taken for nginx.</p>
  
  <ul>
  <li><p>First I used sudo apt-get install nginx</p></li>
  <li><p>delete default file in sites-enabled and sites-available <strong>sudo rm
  -f default</strong></p></li>
  <li><p>create default file in sites-available where I have these codes (just trying to run  one server in port 3001 for now.) <strong>sudo vi default</strong>
  server
     {
   listen 80;<br>
   location  / 
       {
        proxy_pass "<a href="http://192.168.100.5:3001" rel="nofollow noreferrer">http://192.168.100.5:3001</a>";
        }
    } </p></li>
  <li><p>symlink default from sites-available to sites-enabled : 
  <strong>sudo ln -s /etc/nginx/sites-available/default /etc/nginx/sites-enabled/default</strong></p></li>
  <li><p>start nginx  <strong>sudo /etc/init.d/nginx start</strong></p></li>
  </ul>
  
  <p>All I get is Welcome to nginx If you see this page, the nginx web server is successfully installed and working. Further configuration is required.</p>
  
  <ul>
  <li><p>also I tried using this configuration in sites-enabled</p>
  
  <p><strong>upstream project {
      server <a href="http://localhost:3001" rel="nofollow noreferrer">http://localhost:3001</a>;
      }
  server {
      listen 80;
      }
  }</strong></p></li>
  </ul>
  
  <p>but it yield to same result. Please any guidance will be helpful. Thank you.</p>