NetScaler leverages its strong load balancing and SSL acceleration platform to provide SSL VPN features in the 9400 Secure Application Switch. While the solution is complex for administrators and not particularly flexible in terms of what the user sees, the 9400 can be a highly effective remote access solution for Windows-based remote users using Internet Explorer.
9400 Secure Application Switch
NetScaler's 9400 Application Switch offers good performance, but it's pricey and its Java GUI leaves a lot to be desired.
Application Modernization: What Is It and How to Get Started