Sysadmin reverse proxy nginx and centmin mod

I am having a problem, im not sure if it is centmin mod, but i think it might be

i have 2 websites on 1 server, both websites are on different server operating systems, all virtual machines

---physical server virtualization
--vm1 - reverse proxy nginx
--vm2 - centos+centmin mod(website1)
--vm3 - centos+webmin(website2)


what is supposed to happen is, the nginx server is supposed to direct the domain to the correct virtual machine

but it's not happening. the first website works fine, but the second website, all i see is the "Centmin Mod Nginx Test Page"


i can't figure out why,
so, i tried this setup,
*webmin is just some centos backend server gui,

---

---physical server virtualization
--vm1 - reverse proxy nginx
--vm2 - centos+webmin(website1)
--vm3 - centos+webmin(website2)


and this works fine, i can easily access both websites, for some reason with centmin mod, i can't get it working,


would you happen to have any idea?


here is my nginx.conf file

Code:

# For more information on configuration, see:
#   * Official English Documentation: http://nginx.org/en/docs/
#   * Official Russian Documentation: http://nginx.org/ru/docs/

user nginx;
worker_processes auto;
error_log /var/log/nginx/error.log;
pid /run/nginx.pid;

# Load dynamic modules. See /usr/share/nginx/README.dynamic.
include /usr/share/nginx/modules/*.conf;

events {
    worker_connections 1024;
}

http {
    server {
       listen 80;
       server_name server.website1.com;
       location / {
            proxy_set_header    x-real-IP          $remote_addr;
            proxy_set_header    x-forwarded-for    $proxy_add_x_forwarded_for;
            proxy_set_header    host               $host;
            proxy_pass          http://10.0.2.4;   
       }
      }

    server {
       listen 80;
       server_name server.website2.com;
       location / {
            proxy_set_header    x-real-IP          $remote_addr;
            proxy_set_header    x-forwarded-for    $proxy_add_x_forwarded_for;
            proxy_set_header    host               $host;
            proxy_pass          http://10.0.2.5;   
       }
      }

}