Wikipedia
ISPmanager is a commercial control panel for web-hosting management designed and developed by the ISPsystem hosting software developing company.
The ISPmanager control panel supports a wide range of third-party software and enables to manage various products, such as web-server ( Apache HTTP Server/ Nginx), database server ( MySQL/ PostgreSQL), mail server ( Sendmail/ Exim/ Postfix), and other related programs through a centralized web-interface. ISPmanager works with standard configuration of a software product that is installed from OS repositories. It has an open Application Programming Interface (API) that has been utilized to integrate and deploy new services, billing systems, and provides multi-language web-interface and documentation. ISPmanager is available in two versions – Lite (intended for personal use) and Business (for providing shared hosting services).