I have an on premise API which is only accessible within private network. I have to create a linked service of this API for a client. For testing purpose I created a simple flask API in python running on my local host 8080 port. When I try to create linked service in ADF i get this error:

The connection to the REST service failed. Endpoint= http://local host:8080, Reason=
Access to local host is denied, resolved IP address is local host, network type is OnPremise

How can i resolve this issue? I have created self hosted integration runtime instance for adf as well. I tried adding an inbound rule in firewall for 8080 port, but it didn’t work.