The primary (a BIND9) of a zone ("test.") served (as a secondary) by our nsd complains: Jul 16 17:52:45.796 notify: debug 3: zone test/IN: notify response from 192.134.7.251#53: NOTIMP After all, nsd implements the NOTIFY, it logs them and SEC parses the log file to run "nsdc update". Isn't it an error to send a NOTIMP? nsd 1.2.1