On Mon, 2 Nov 1998 [EMAIL PROTECTED] wrote:
> The sender then proceeded to give detailed information almost as though
> he'd catted the zone file on our DNS server. It included what the MX
> records were for a given systems and which server were CNAMEd to which.
> ...so here's my question: How'd he do it? =:)
Well, you could do a whole zone transfer, if you really wanted to, but, to
the point..
Look, DNS is public information - it's not supposed to be secret or even
hard to obtain. nslookup has an ls command which lists all hosts
registered under a certain domain, for example.
Specifics: if you specify type=MX to nslookup, you can lookup MX records
for a certain host. If you specify type=CNAME, you can lookup CNAMEs for a
certain host. If you specify type=ANY, I'm quite sure you can do an ls and
get all information for all hosts for your domain.
Remember, you have to set nslookup's server to any of the domain in
question's authorative dns servers.
--
christian
[EMAIL PROTECTED]
-
To unsubscribe from this list: send the line "unsubscribe linux-net" in
the body of a message to [EMAIL PROTECTED]
