How to disable record listing ?

Stefan Probst stefan.probst at opticom.v-nam.net
Tue Aug 1 11:19:19 UTC 2000


At 10:54 01.08.00 +0100, Jim Reid wrote:
-------------------------
> >>>>> "Stefan" == Stefan Probst <stefan.probst at opticom.v-nam.net>
writes:
> 
>     Stefan> Since they are not operating any firewall, split zones etc.,
>     Stefan> "Split DNS" wouldn't be an option, as far as I understand.
> 
> It's not necessary to run a firewall to implement split DNS. The two
> things tend to go together as part of a security policy though.

If they don't run a firewall and split zones, then how should a split DNS
help them for their purpose?

> 
>     Stefan> And in this case they are right as far as I understand:
>     Stefan> Restrict zone transfers at the master AND at all slaves,
>     Stefan> i.e. at the ISP in this case.
> 
> Nope. Restricting zone transfers does not in any way whatsoever
> conceal that sensitive information.

Of course, it would not conceal it. It would not make it impossible, but
only  much more difficult to get a complete subdomain list, i.e. their
complete customer list.

Cheers,
Stefan




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