Hi, maybe some of our users might help us out with this? We could probably go into lengths, so assuming you already have a Knot DNS configured and zones in place (bootstrapped or copied-in), you could: 1. start Knot DNS side by side with the PowerDNS but on a different port (say 53535) 2. create a firewall rule to redirect all the incoming traffic to the port 53 to the 53535 3. shut down the PowerDNS instance, edit the Knot DNS configuration to listen on both 53535 and 53 (reload doesn't interrupt the service) 4. remove the firewall rule 5. now you're running Knot DNS without any interruption in service Good practice is to start out on a single/few less important nodes and see how it goes. We don't have any scripts or 1:1 conversion tools for configuration import from other servers, so you probably have to figure that out, but presuming it's a slave server it should be straightforward if you peek in the documentation https://github.com/CZNIC-Labs/knot/blob/master/doc/configuration.rst Kind Regards, Marek On 4 January 2015 at 02:55, Ret Law <retlaw144(a)yahoo.com> wrote: