Zone Transfers

[Brian Conway]

> My Linux system uses a bogus domainname. It is a COM domain.
> How can I verify that I am not doing any outbound zone transfers?
> I do not want to confuse anyone out there.

Without going to deeply into the workings of domain name servers and
transfers, any zones that a machine holds as files are either generated by
that machine as a master file or pulled off another server, if they allow
transfer by you.  If you run a bogus domain, you won't have any problem
unless (for some unknown reason) someone tries to transfer it to you.  Just
set allow-transfers in named.conf to the loopback device and you'll be all
set.  Due to the setup of dns, there's no reason you should have to worry,
and there shouldn't be any possible reason for outbound transfer that is
initiated by your machine to anywhere else.

Brian Conway
dogbert at clue4all.net



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