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Connecting to Azure Blob Storage : OAuth credential error

Hi, I have followed the instruction here in: https://community.denodo.com/kb/view/document/How%20to%20connect%20to%20Azure%20Blob%20Storage%20from%20Denodo?category=Data+Sources After performing prerequisites in the Azure Portal, I'm trying to connect to Azure Blob Storage from Denodo 7.0. But in the "OAuth 2.0 Credentials Wizard", when I click on "Obtain the OAuth 2.0 credentials", such error occurs; "There was an error while requesting the OAuth 2.0 credentials. Connection refused Server returned: null" How should I do succeed to connect to Azure Blob Storage from Denodo?
user
18-12-2019 00:20:29 -0500
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1 Answer

Hi, To determine the cause of the "Connection refused" error, I would perform the following checks: * Make sure that your Blob storage is not running behind a proxy. * Increase the [logging level](https://community.denodo.com/docs/html/browse/latest/vdp/administration/appendix/configuring_the_logging_engine/configuring_the_logging_engine) of the API requests by executing the following stored procedure: `CALL LOGCONTROLLER('httpclient.wire', 'TRACE');` Reproduce the "Connection refused" error, and then check "vdp.log" located in "<DENODO_HOME>/logs/vdp." After you are done, make sure that you restore the logging level back to "ERROR." * Try to connect to Azure Blob Storage using a third-party API client (e.g. Postman) to see if your Blob storage configuration allows client connections. If you are unable to connect to the Blob storage using another API client, then you can contact your Azure administrator for assistance. I would suggest that you take a look at the [How to connect to Azure Blob Storage from Denodo Platform](https://community.denodo.com/videos/details/Cloud/Denodo%207.0/How%20to%20connect%20to%20Azure%20Blob%20Storage%20from%20Denodo%20Platform) video which explains the configuration process in detail. Hope this helps!
Denodo Team
19-12-2019 17:52:05 -0500
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