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 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;
•  Save changes

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

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

Below line "fastcgi_pass   127.0.0.1:9000;" paste:

fastcgi_param HTTPS 'on';

4.. Restart webserver & php-fpm:

service nginx restart && service php-fpm restart