Outlook clients terminate the TCP connections by TCP-RST packets. To achieve this behavior with Airlock WAF, the expert setting described below must be configured.
Without this configuration, there is no noticeable impact except that the back-end server might log HTTP errors with status code 400.
Procedure-related prerequisites
- ●The previously described configuration steps have been carried out.
Instruction
- 1.Go to: Application Firewall >> Reverse Proxy.
- 2.Edit the Outlook Anywhere Back-end Group.
- 3.Change to the Expert Settings tab.
- 4.Select ON to enable the Security Gate Expert Settings.
- 5.Enter following Expert Settings:
BackendConnectionCloseByReset "TRUE"