Jim Pazarena <b...@paz.bz> wrote: > > while it can resolve "webmail.acrodex.com" ( 139.142.184.10 ) > it cannot reverse resolve 139.142.184.10
They are using classless reverse DNS, which is fine except that the nameservers for the target zone are very broken. 10.184.142.139.in-addr.arpa. CNAME 10.0-25.184.142.139.in-addr.arpa. 0-25.184.142.139.in-addr.arpa. NS pluto.acrodex.com. 0-25.184.142.139.in-addr.arpa. NS nova.acrodex.com. 0-25.184.142.139.in-addr.arpa. NS saturn.acrodex.com. Nova does not exist. Pluto refuses most questions for 10.0-25.184.142.139.in-addr.arpa except if you ask for a PTR, in which case it replies with a bogus question section containing 139.0.184.142.in-addr.arpa. Saturn works OK for most questions, and returns a PTR record if you ask for ANY, but if you request a PTR directly it ignores you. Tony. -- f.anthony.n.finch <d...@dotat.at> http://dotat.at/ Forties, Cromarty: East, veering southeast, 4 or 5, occasionally 6 at first. Rough, becoming slight or moderate. Showers, rain at first. Moderate or good, occasionally poor at first. _______________________________________________ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
