Adding a Backup URL into Citrix Web Interface

Creating a backup URL is one of several strategies that exist for designing a redundant Web Interface in your XenApp farm if you are using the XA plugin for hosted apps (PN Agent). There is always the option of creating multiple Web Interface servers and using load balancing appliances. There is also the option of using a round robin approach with DNS (poor man's load balancing). However, using appliances may be "over the top" in an environment without heavy utilization and the DNS approach isn't intelligent enough to detect a failed server and would require manual removal of the failed server entry.

Adding a backup URL to Web Interface for your hosted plugin allows a seamless failover to a second site. The process starts by specifying the backup URL into the Web Interface configuration. After that, the URL is pushed out to all of the hosted apps plugins upon their next successful connection. In the event that your primary Web Interface fails, the hosted apps plugin will detect the failure and automatically attempt to connect with backup web interface server specified in the backup URL configuration. Instructions on how to add the backup site can be found here:

http://support.citrix.com/proddocs/index.jsp?topic=/web-interface/wi-specify-backup-urls.html