A METHOD FOR MAINTAINING TRANSACTION INTEGRITY ACROSS MULTIPLE REMOTE ACCESS SERVERS

摘要

A system for providing failover redundancy in a remote access solution that includes at least one application resource on a back-end server is discussed. The system further includes multiple gateway servers. One of the multiple gateway servers is designated as a primary gateway server while the other servers are designated as failover gateway servers. Each of the multiple gateway servers hosts a session with at least one executing application instance for the same application with each of the sessions on the failover gateway servers being maintained in the same state as the session on the primary gateway server. The primary gateway server is the only one of the gateway servers that is allowed to communicate with the application resource(s). The system further includes a client device that is in communication over a VPN with the primary gateway server. The client device receives output of the application instance executing in the session on the primary gateway server over the VPN. The client device also sends input to the primary gateway server over the VPN. The received output is displayed on a viewer by the client device.