We're using Apache 2 webserver and we've enabled reverse proxy from our proxy server to our Enterprise Portal 7.0. We have transaction iviews for different systems, an ECC 6.0 and CRM 5.0. We are using the integrated ITS for these systems provided with basis version 7.0. We have all the necessary ports open in the firewall. I know how to configure the proxy when there's only one ITS server, but how would I do it for two (the ECC and CRM system)?