That way, they work together in a group to handle load balancing and HA requirements. The recommendation is to install two or more StoreFront servers within the data center or cloud environment behind a firewall. Connections may happen directly (typically for internal access scenarios) or externally through a Citrix Gateway on a Citrix ADC (formerly NetScaler Gateway). Citrix StoreFront is installed on Microsoft Windows servers allowing end-users to connect from the endpoint device of their choice.