Abstract: An isolation proxy server system separates a typical proxy server or reverse proxy server into two physical computing platforms. A first physical platform, a front end proxy server, receives requests from clients on an external network, but is unable to relay requests by originating corresponding requests on an internal network. A second physical platform, a back end proxy client, originates distinct work requests to the front end proxy server. The front end proxy server forwards client requests to the back end proxy client in responses to the distinct work requests it receives from the back proxy client. The back end proxy client relays the client requests to a target server. Thus, the front end proxy server may not originate new requests to the server(s) in the protected zone, and the back end proxy client may not receive new requests from clients or from the front end proxy server.

Abstract: An isolation proxy server system separates a typical proxy server or reverse proxy server into two physical computing platforms. A first physical platform, a front end proxy server, receives requests from clients on an external network, but is unable to relay requests by originating corresponding requests on an internal network. A second physical platform, a back end proxy client, originates distinct work requests to the front end proxy server. The front end proxy server forward client requests to the back end proxy client in responses to the distinct work requests it receives from the back proxy client. The back end proxy client relays the client requests to a target server. Thus, the front end proxy server may not originate new requests to the server(s) in the protected zone, and the back end proxy client may not receive new requests from clients or from the front end proxy server.

Abstract: A computer-implemented method for systematically evaluating accuracy of data in a home location register, independent of call processing and in the absence of interference with resources required for call processing at the home location register. The method includes operational steps of: identifying, from among a plurality of subscribers, a subscriber serviced by a visited location register and identifying the visited location register servicing the identified subscriber. The method also includes forwarding a message to the identified visited location register to determine if there is a corresponding record for the identified subscriber, and determining, based on a reply to the forwarded message or lack thereof, the accuracy of home location register's record for the identified subscriber.