![]() The first connection is always the primary XML-API protocol over HTTPS. When a Horizon Client user connects to a Horizon environment, several different protocols are used. For Unified Access Gateway 3.10 and above, Blast (8443 port) no longer uses TLS 1.1 and only supports TLS 1.2.With Unified Access Gateway 3.9 and below, both services have TLS 1.1 and 1.2 enabled by default.Note: Updating the security protocols and cipher suites for Blast (8443 port) and PCoIP (4172 port) when not running on port 443 is not supported on Unified Access Gateway, By default, SSL is disabled on Unified Access Gateway and only TLS 1.2 and TLS 1.3 are enabled. Transport Layer Security (TLS) and the predecessor Secure Sockets Layer (SSL) are both referred to in this document as just SSL. This article also covers health monitoring and SSL offload/SSL bridging for load balancers. The three methods ensure that all protocol traffic from a Horizon client session goes to the same Unified Access Gateway appliance. It discusses the distinction between the primary and secondary Horizon protocols and describes the three methods for guaranteeing session affinity. This article focuses on the load balancing requirements for the Horizon use cases. For high availability and scalability requirements in a production deployment, multiple Unified Access Gateway appliances are usually deployed behind a load balancer.įigure 1: Multiple Unified Access Gateway appliances behind a load balancer Unified Access Gateway is typically deployed in a demilitarized zone (DMZ). Refer to the VMware Unified Access Gateway: High Availability - Feature Walk-through for details of that feature. Unified Access Gateway also has a built-in high availability feature, although it is outside the scope of this document. This document focuses on the Horizon use case for Unified Access Gateway with an external load balancer. VMware Workspace ONE UEM (Tunnel, Content Gateway, Secure Email Gateway).For an overview of Unified Access Gateway, see the Unified Access Gateway Activity Path on Tech Zone . Unified Access Gateway is a VMware virtual appliance designed to protect desktop and application resources to allow remote access from the Internet.
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