Some extra recommendations that must be follow when adding PC Hosts on restricted environments.
Besides what is indicated on document Ports used by Performance Center when addding a PC Host there are some extra communications that will happen in order to add it:
There will be communication between the PC Host and the ALM server, on port 8080, in case ALM is secure it will be the defined port, ie.: 8443.
In case a Load Balancer is used on the environemnt the comunnication will need to be opened between the PC Host and the Load Balancer.
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