I have created a test environment with Windows Server 2008 R2 as domain server. A TMG Server is also installed on Windows Server R2 and a member of the domain. On the TMG Server I created the following policies:
- Allow protocol HTTP, HTTPS from internal to some specific websites like
*.zain.com.saetc to HR manager and HR Users group.
- Allow protocol HTTP, HTTPS from internal to external to Engineering Manager and Users group.
- Allow protocol HTTP, HTTPS from internal to external to all
When I disable the 3rd policy to check the internet connectivity on a client in the HR or Engineering department, I got an error:
A connection was gracefully closed in an orderly shutdown process with a three-way FIN-initiated handshake under logs and reporting.
When I re-enable the 3rd policy, the internet works fine. I tried on a webclient and a TMG client as well.