[PLUG] Victor is trying to understand DNS
Ed Sawicki
ed at alcpress.com
Sun Oct 14 10:06:51 UTC 2007
Bill Barry wrote:
> On 10/14/07, Victor Soich <vsoich at gmail.com> wrote:
>> On 10/14/07, Bill Barry <bill at billbarry.org> wrote:
>>> The answer to your question is hidden in this set of riddles.
>>>
>>> What does a nameserver do?
>> A nameserver tells a client what name and domaian of a host is
>> associated with what IP address.
>>
>
> This is reversed. You send a nameserver a name and it returns an IP address.
Victor's not wrong. A DNS nameserver can resolve an IP address
to a name as well as the reverse. It's just that resolving a
name to an IP address is more common.
Note that DNS is not just about host names an IP addresses. DNS
can be used to lookup other items of information associated with
a name, such as geographic coordinates, certificates, public
keys and key fingerprints, names of administrators, email
authentication, and general and special purpose text,
Ed
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