How to configure Citrix NetScaler Gateway Service for XenApp & XenDeskop Service – Video
Citrix Cloud provides NetScaler Gateway Service as an add-on to XenApp and XenDesktop Service, to provide a simple to configure, secure and a better connectivity experience to XenApp and XenDesktop Service. For enabling NetScaler Gateway Standard Service for XenApp and XenDesktop service, all it takes is 3 clicks. The gateway service is fully managed by Citrix, is delivered as SaaS, and as compared to an on-premises gateway, is much simpler to configure.
This video is from the fine folks at Citrix