You can additionally also try by entering "%OSCertificateStore" in field "File containing trusted Certificate Authority certificate(s)" of your TLS configuration. 

When you are connecting through Postman or terminal, it establishes the chain of trust using the public CAs stored in trusted certificate store on your machine, or the application.

In IRIS you have to give the entire chain and not just the root certificate, if there is an Intermediate CA which is signing either your client or the server's cert, you can extract the entire chain using your browser as well or through openssl too.

Hi Norman,

Its available through the portal, System Operation ->Processes, then you check the Device column.

In the device column, you would have something like this:-

|TCP|33010|472

Here, 33010 is the TCP port and 472 is the job number.

Regards,

Deepak Ghansala