Can Domain Subzone Names be Found?

Michael Voight mvoight at cisco.com
Sun Aug 22 17:52:49 UTC 1999


If you do not permit zone transfers, there is no way for others to see
these beyond guessing.

Michael

Jim wrote:
> 
> For convenience I've created names for a few devices on our network
> which have public IP addresses, such as managed switches and routers.
> For example: 'switch1.mydomain.com'.  Is there any way (besides
> guessing) that these names could be found through querying of my DNS
> servers?  Assuming, of course, that I haven't reverse-mapped the IP
> addresses to the names and that I'm limiting zone transfers only to my
> secondary DNS servers.  Since some of the names are suggestive of the
> equipment function and even make/model, I'd just as soon they not be
> visible.
> 
> Thanks,
> Jim


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