To install valid SSL Certificate on VPS/Server where HostBill Enterprise is installed:

1. SSH to your HostBill Enterprise server as root:

# ssh root@yourhostbilladdress

2. Edit file:

/etc/nginx/conf.d/main.conf

# nano /etc/nginx/conf.d/main.conf

• Change server_name to domain name that you have issued the certificate for.
• Change "listen 80;" to "listen 443;"
• Add line "ssl on;"
• Provide path to your certificate and private key files like:
  ssl    on;
  ssl_certificate    /etc/ssl/your_domain_name.pem; (or bundle.crt)
  ssl_certificate_key    /etc/ssl/your_domain_name.key;
  

• At the very top of mentioned file add following section:
  
  

  server { listen 80 default_server; listen [::]:80 default_server; server_name _; return 301 https://$host$request_uri; }

  
  

•  Save changes

3. Edit file: /etc/nginx/locations/hostbill.conf

# nano /etc/nginx/locations/hostbill.conf

Below the line "fastcgi_pass   127.0.0.1:9000;" paste:

fastcgi_param HTTPS 'on';

4. Optionally, redirect all traffic from port 80 to 443.
To do that, add following lines at the top of /etc/nginx/conf.d/main.conf

server {
	listen 80 default_server;
	listen [::]:80 default_server;
	server_name _;
	return 301 https://$host$request_uri;
}

5. Restart webserver & php-fpm:

service nginx restart && service php-fpm restart