Portal configuration with Reverse Proxy - DNS_PROBE_FINISHED_NXDOMAIN

02-15-2021 08:01 AM
New Contributor III


We are running ArcGIS Enterprise 10.8.1 on a windows server.

All the components are installed on the same machine : portal, server (each with a web adaptor), datastore.

Everything is working well as it should on the internal network.

For an external access, we are using a reverse proxy. However when loading the page we have an error in the web browsers: DNS_PROBE_FINISHED_NXDOMAIN . It is the first time I see this error message with portal. I did not set up the reverse proxy, the windows server provider did it for us. I told them Portal did not accept more than 1 DNS.

I check the forum, and found some hints, like the webContextURL. We tried and with the WebContextURL configurated, we end up with a too many redirect error.

If someone had the same issue or has some idea on how to solve this it would be great.

Thank you.




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2 Replies
Occasional Contributor

Hello @MelanieFournier1 

ArcGIS Enterprise only supports one name for DNS, so internally and if exposed you must use the same name.

For example

https://server.domain/portal > Portal

https://server.domain/server > GIS Server (Must be federated with this DNS name)

https://server.domain/image > Image Server (Must be federated with this DNS name) 

Do you have the Webcontext edited with DNS? the same name is used both inside and outside the organization? When you expose an environment in both Portal and ArcGIS Server you must edit them.

Home > System > Properties
Update Properties

Properties: {"WebContextURL": "https://server.domain/portal", "disableSignup": "true"}

ArcGIS Server
Home > system > properties
Update Properties

{"WebContextURL": "https://server.domain/server"}

If DNS fails to resolve the domain name or address then you might receive the error message you commented, so it may also be a issue in the reverse proxy configuration.


New Contributor III

Hello @lvargas 

Sorry for the late answer. Thanks for the info. I totally put this configuration on the side. I will start again this week and check with the provider about the reverse proxy configuration.

Thanks again.

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