[comp.protocols.tcp-ip] Preventing zone transfers from nameservers

Z00EJR01%AWIUNI11@pucc.PRINCETON.EDU (Ewald Jenisch) (02/22/91)

We're running a "bind" nameserver under Unix for some time now.

I'm looking for a way to restrict zone-transfers from nameservers.
Put in another way I only want certain hosts in the net to do a complete
zone-transfer (namely official "secondary nameservers") - the rest of
the nameservers/nslookups out there should be able to query our nameserver
for IP-addresses or inverse queries but NOT a complete zone-transfer.

Any ideas how I could get that working? Are there any modifications
necessary in the "named"-sources?

I've already looked at the "assigned numbers" but didn't find a dedicated
TCP/UDP port for AXFER queries - seems all nameserver queries run over
port 53 (both UDP and TCP).

Thanks in advance for any information,

Ewald JENISCH                                    NIC-Handle: EJ51
University Computer Center; University of Vienna, Austria
E-Mail: z00ejr01@awiuni11.bitnet or z00ejr01@helios.edvz.univie.ac.at
Snail-Mail: Universitaetsstrasse 7; A-1010 Vienna, Austria, Europe