How to troubleshot Arcgis Portal proxy 403 error?

Question

Hi Experts,

Would like to know how to trouble shoot that portal proxy 403 error?

In the network traffic when I load the web map, I saw two web request, one is with proxy  (got 403), one is with direct request (got http 200).

When I browse the https://xyz../MapServer?f=json, it is happily browse also.

But when it is trying to browse through portal proxy, it always, 403 error.

It is happening in portal for arcgis 10.5.1.

Best Regards,

Than Htet Aung

JonathanQuinn · Answer

I'm sure Portal doesn't trust that root certificate by default, so export the certificate via your browser or IIS and then import it into your Portal through the link I posted above.

Than_HtetAung · Answer

Hi Jonathan,

That ogc service is external service.

I can browse the url and certificate is issued from "Quovadis Global ssl ica g3"

Best Regards,

Than

JonathanQuinn · Answer

If the service is coming from a federated Server, then if it uses a self-signed certificate, the certificate isn't the problem.

If the certificate is from your AD and is configured with a wildcard, then you need to import the root certificate into the Portal. You need to do this regardless if the Server is federated or not.

Configuring the portal to trust certificates from your certifying authority—Portal for ArcGIS (10.6) | ArcGIS Enterpri…

HTTP code 503, as the error indicates, means that the Server can't respond to the request. Can you reach the URL in your browser? What about in a browser run by the user running the Portal Windows service or Linux install user?