Automating router DNS configuration - UPNP?

[xiki808]

This is not a bug report and neither a feature request. I'm looking for feedback from some smart people about improving the DNS router configuration convenience.

I was looking for a way how to make router changes more easy for non tech savvy people and if possible also automate the configuration.

I have found an interesting python tool that can help me discover UPNP devices on my network and also the UPNP services they provide. I have also understood that I need theLANHostConfigManagement UPNP service in order to modify DNS and DHCP settings on the router.

Unfortunately neither of my 3 router devices provide this service, and for obvious reasons. I have understood the risks to allow for such devices for an app to change such settings.

But then is there another way how/work around to achieve this convenience?

My goal is to have a Raspberry Pi running a DNS service, and that can be easily installed in a home network. Is there a creative mind that think of and show me of a way to automate DNS configuration on the router without having the user do it himself, while keeping it safe and local?