Students from the UNAD Florida (Medellín, Colombia) have published a very detailed tutorial (in Spanish) on configuring Zentyal as a DHCP/DNS, Domain controller, Proxy, Firewall, File server, Printer server and VPN. Check it out: Gestión e implementación de servicios IT para intranet y extranet, bajo Zentyal Server ¡Gracias Diego Andres Ospina, Juan Camilo David, Yeisson Adrian Boada y Juan David …