Changes since SOA version
IXFR is a zone transfer request that returns changes since a specific SOA version. Enter the SOA version to request changes since then.
Not an apex domain
The domain ipv4-149-100-173-89.novanetworks.it is not the root of its zone.
Instead, try zone transfer on novanetworks.it .
Instead, try zone transfer on novanetworks.it .