On Mon, Sep 13, 2004 at 04:56:29PM +0100,
Jonathan de Boyne Pollard <J(_dot_)deBoynePollard(_at_)Tesco(_dot_)NET> wrote
a message of 32 lines which said:
and only one mainstream DNS server software package, [2]djbdns,
actually has the ability to selectively disable the use of
DNS/TCP for its content DNS service. Other content DNS server
softwares have the capability of disabling the "zone transfer"
database replication mechanism; but that is not the same as
disabling the use of DNS/TCP, old wives tales to the contrary
notwithstanding.
I am not sure you know what you are talking about. nsd
(http://www.nlnetlabs.nl/nsd/), which is used for k.root-servers.net
and for our ns2.nic.fr, has such a capability (just run it with -n 0).