I have a server at data center on which we have hosted multiple applications on IIS and back-end databases are SQL server 2008 r2 & Oracle 11g r2. All applications are accessed by various clients from different locations and for all clients we are having our supports engineers who are supporting them. All support engineers needs to do some data changes in database if required by log-in into server by remote desktop using public IP but windows server 2008 supports only two remote connections.
Is there any application or services which allows more than two remote sessions and allows me to give access to particular applications only. I don't want to use terminal services of windows server 2008.