Alternativas ao Django Helpdesk para NGINX com licença comercial

• NGINX
  Todas as plataformas Windows Mac Linux Chrome OS Android iPhone Windows Phone Blackberry iPad Android Tablet Kindle Fire PlayBook Web Self-Hosted Software as a Service (SaaS) PHP Windows Mobile Apache HTTP Server MySQL Community Edition NGINX Google Apps Perl Microsoft IIS
• Licença comercial
  Qualquer licença Licença gratuita Licença Open Source Licença comercial