Date: Wed, 26 Jan 94 19:44:44 EST
From: Alexander Dupuy <dupuy @
> Yes and no. The DNS data is a potent source of information for
> industrial espionage. It's also useful to hackers for target selection.
Of course, things like hostnames already leak out every day (have you looked at
the Received: headers on mail?) so it's not clear that DNS is really opening
you up that much.
Sure it does. It makes the information about hostnames *vastly* cheaper to
get. If somebody's got to find it by extracting it from mail headers, they've
got to do a lot more work to get hostnames (and more still to get
IP addresses). If the same information is available via DNS, you're
delivering it to them at wholesale prices. --Tom