![]() HTTPS Tunnel used for encapsulating TCP protocols such as RDP, MMR/CDR and the client framework channel. ![]() These secondary connections can include the following: If this authentication attempt is successful, then one or more secondary connections are made from the Horizon Client. This configuration evenly distributes the traffic from different clients across the available set of Unified Access Gateway appliances.Īfter the Horizon Client establishes secure communication to one of the Unified Access Gateway appliances, the user authenticates. ![]() The load balancer usually selects the appliance based first on availability, and then out of the available appliances, routes traffic based on the least number of current sessions. In a load balanced environment as shown in the Multiple Unified Access Gateway Appliances Behind a Load Balancer figure, the load balancer routes this connection to one of the Unified Access Gateway appliances. This protocol is sometimes known as the Horizon XML-API control protocol. The protocol uses XML structured messages over HTTPS. This is a control protocol for authentication authorization, and session management. The user enters a hostname at the Horizon Client and this starts the primary Horizon protocol. Following successful authentication, one or more secondary protocols are also made. The first connection is always the primary XML-API protocol over HTTPS. Horizon environment, several different protocols are used. Unified Access Gateway Appliances Behind a Load Balancer In both approaches, use a load balancer in front of two or more Unified Access Gateway appliances in the DMZ. You can alternatively have one or more Unified Access Gateway appliances point to an individual server instance. With Unified Access Gateway, you can point the Unified Access Gateway appliance to this same load balancer that is often already being used. The server instances inside the corporate firewall usually have a load balancer to support internal access. For example, the load balancer might make a selection based on availability and the load balancer's knowledge of the number of current sessions on each server instance. If the Unified Access Gateway appliance points to a load balancer in front of servers, the selection of the server instance is dynamic. ![]() Unified Access Gateway is deployed as a web reverse proxy. Note: Unified Access Gateway is certified to work with ![]()
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