if your ISA server is your default gateway(secure nat client) to the web you should not need the firewall client. Are you able to ping the remote server?
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ISA Server - RDP Outbound from Internal Network
Hello,
On our ISA Server we have just attempted to allow RDP outbound from one of our internal workstations.
The rule created was: Internal Network & Local Host - Allow Outbound RDP traffic - to External
Still unable to RDP to an external Host from the Internal Workstation. However, the Rule did allow RDP from the ISA Server itself to the External Host.
Wierd.
Anyone a Guru at ISA Server? - please help
Cheers,
-Craig
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Answers
Sometimes you still need the FWC. This would be in situations where there is no Application Filter for the particular type of traffic,...the FWC acts as a universal Application Filter (with some limitations) while SecureNAT require a very specific Filter for complex protocols. If anything, installing the FWC is a good troubleshooting step, it can always be uninstalled or left disabled.
RDP, like a web browser such as IE, has the ability to pass user credentials to ISA Server and FTMG when requested for them.
Phil is correct that RDP should not be allowed from localhost to external - to be blunt, unless you are troubleshooting, localhost should be excluded wherever possible from as much as possible whilst still allowing the server to fuinction.
Have you confirmed that the remote work station operates on RDP from outside of the ISA environment?
Keith - ISA MVP
Thanks to the great replies so far...
- The remote Host I am trying to RDP to does work fine from other networks outside the safety of the ISA.
- The FWC is not currently installed on the Workstation that I am attempting to RDP from - hopefully this will be the reason?
Does the FWC simply need to be installed or is any configuration required on the Workstation?.
Thanks
-Craig
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by: pwindellPosted on 2009-09-04 at 09:58:16ID: 25261403
The Client machine will require the Firewall Client to be installed unless the rule is anonymous.
You should not involve the ISA in this. I would remove LocalHost from the Rule.