You're taking my words too literally. I did not say its one-one relationship,
in fact, its many-many and for dns->ip we can have multiple ips associated
with the same dns and multiple dns pointing to the same ip, similarly
ip->dns can have multiple reverse name (rare, but allowed) and multiple
ips giving the same name.
But what I meant is that either infrastrcture can be used to provide some
means of authentication (not saying its done now or what is done can be
trusted) but neither one can be relied by itself.
On Thu, 6 Mar 2003, Keith Moore wrote:
On Thu, 6 Mar 2003 09:46:16 -0800 (PST)
william(_at_)elan(_dot_)net wrote:
DNS is specially designed to be tied to IP addresses
uh, no.
yes reverse DNS can be used to lookup domain names but DNS names are not
"tied" to IP address - the mapping from a DNS name to an IP address is
arbitrary, and so is the reverse mapping, the two don't have to match
or even exists. and anybody with an IP address block can claim that
those addresses are associated with any domain he likes.
IP-to-domain lookup is often meaningless anyway, in many cases returning
what is essentially a text representation of the IP address with some
provider's name appended.
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