Nginx redirects to default page - django

Question

I am setting up a domain for my Django/Gunicorn/Nginx server. It works fine with IP address instead of domain name in server_name but when I add domain name it redirects to default Ubuntu Nginx page. My Nginx file looks like this (please note that I replaced my domain with example.com):
Path : /etc/nginx/sites-available/projectname
server {
listen 80;
server_name example.com;
return 301 $scheme://www.example.com$request_uri;
}
server {
listen 80;
server_name www.example.com;
client_max_body_size 4G;
location = /favicon.ico {access_log off; log_not_found off;}
location /static/ {
root /path/to/static/dir;
}
location / {
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header Host $http_host;
proxy_redirect off;
proxy_pass http://unix:/path/to/gunicorn.sock;
}
}
I have run the command sudo nginx -t and sudo service nginx restart but no effect. Please let me know if I am doing anything wrong.

Answer 1

1- see main nginx.conf how include all config files. if it is including site-enabled path then go to path and see is a shortcut to config file of this site under site available?
or if all sites are enabled in nginx config file include directly available
include /etc/nginx/sites-available/*;
2-mix two server define code once and with rule forward non www to with www
3-if not work check dns config problem and see result from inside of server via putty not from outside of server with browser to see it is nginx problem or dns config problem.
note: changing dns name servers taken some hours to work and effect on clients.