How to connect Azure Function App to On-prem DNS Server?

[nabi04]

I am creating a .NET application that validates domain from an on-prem DNS server. I would like to know how can I integrate my Azure function app to perform nslookup on the on-prem DNS server. Is there a way without using virtual networks or powershell script?

[#2]

You can do by setting up Hybrid Connection and install Hybrid connection manager on prem machine , in your azure functions you can use libraries to perform DNS lookups

[#3]

@nabi04 

You may consider Private endpoints:

https://learn.microsoft.com/en-us/azure/azure-functions/functions-networking-options?tabs=azure-cli