At Tue, 20 Jan 2015 21:12:57 +0100, Uwe Kleine-König wrote: > > ;; ANSWER SECTION: > mysecond.zone. 86400 IN DNAME myfirst.zone. > www.mysecond.zone. 0 IN CNAME www.myfirst.zone. ISTR that this TTL=0 was required by the original DNAME specification, since revised. /Niall