About Secure Gateway:

The Secure Gateway for Windows helps you to secure access to enterprise network computers running Citrix XenApp and provides a secure Internet gateway between Citrix XenApp and user devices. The Secure Gateway transparently encrypts and authenticates all user connections to help protect against data tampering and theft. All data traversing the Internet between a remote workstation and the Secure Gateway is encrypted using the Secure Sockets Layer (SSL) or Transport Layer Security (TLS) protocol.

The Secure Gateway is an application that runs as a service on a server that is deployed in the demilitarized zone (DMZ). The server running the Secure Gateway represents a single point of access to the secure, enterprise network. The Secure Gateway acts as an intermediary for every connection request originating from the Internet to the enterprise network. For increased security, the Secure Gateway Proxy is used with the Secure Gateway in a double-hop DMZ deployment. The Secure Gateway is installed in the first DMZ and the Secure Gateway Proxy is installed in the second DMZ. The Secure Gateway Proxy acts as a conduit for traffic originating from the Secure Gateway to servers in the secure network, and from servers in the secure network to the Secure Gateway.

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