jfb
August 13, 2018, 10:08pm
51
I don't run a Fritz Box, but there have been issues with DNS rebinding. The thread referenced below provides additional information - note there is a section on Fritz Box.
What is DNS rebind protection?
If your router has an option called DNS rebind protection enabled, you may run into issues when trying to use Pi-hole as your DNS server. The reasons for this are quite technical, but to summarize what this option does in one sentence:
DNS rebind protection does not allow DNS queries to be answered with a local IP address.
Why does this interfere with Pi-hole?
DNS rebind is meant to be a countermeasure to an attack on your network . So in many cases, it's actu…