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ADF and Self-Hosted Integration Runtime Config Errors

Teo Lachev points out a common issue with using the Azure Data Factory self-hosted integration runtime:

You’ve set up the Azure Data Factory self-hosted integration runtime to access on-prem data sources. You create a linked server, click Test Connection, and then get greeted with an error saying the security context can’t be passed. On the on-prem VM, you use the Integration Runtime Configuration Manager and get a similar error or something to the extent that JSON can’t be parsed. You spent a few hours in trying everything that comes to mind, such as checking firewalls, connectivity from SSMS, but nothing helps.

Read on for the solution.