Assume we have a plain Unbound DNS server with one IP address for clients. Now we want to assign a second IP address. We changed a configuration file and restarted our Unbound.

Testing

We are querying the first IP address using dig and everything works fine but when we are querying the second address we are getting the following answer.

...
;; reply from unexpected source: x.x.x.x#53, expected y.y.y.y#53
...
 Continue Reading