The DNS problem

[Carl Smith]

Thanks Bombim,

Good explanation of the system.  This does help us to see the complexity
and implications for a solution.  Keep looking at the big picture my
friend.  To find the right answers, we must ask the right questions.

Lou

On 8/22/2012 5:24 AM, Horacio T. Cadiz wrote:
> On 08/21/2012 10:38 PM, Carl Smith wrote:
>> The DNS problem and reason for confusion is due to limitations
>> imposed during
>> the infancy of development stages of machine inter-connectivity.
>> Basically, IP
>> is insufficient to grant each machine a unique identity. The limited IP
>> addresses are licensed to master networks which in turn are
>> sub-netted to
>> machines which only have a local identity slaved to the master.
>
>   This is not entirely accurate. The DNS issue is separate
> from the IP address issue.
>
>   There were (when the DARPA net started)
> enough IP addresses to grant each machine a unique IP
> address.  The IP address depletion only started in the
> early 90s during the Internet boom. The CIDR, network
> address translation (NAT), and other techniques were
> then used to forestall the problem of address depletion.
> Now, with IPV6, there are more than enough IP addresses
> to assign to anything you can think of (I exaggerate of
> course, slightly).
>
>   The DNS was not in response to the limited number of
> IP addresses. The DNS is a mechanism for giving names to
> IP addresses because, unless you are at MIT, we prefer to
> refer to things by names (often implying a function or
> a characteristic) rather than numbers.  It is easier to
> say "download the file from 'server'" than "download the
> file from 165.220.3.1." We remember names better than numbers,
> specially long arbitrary string of numbers.  Of course,
> there are other benefits like giving the same name
> to set of different IP addresses to create a simple
> redundancy of services from the set of machines.
>
>   The creation of domain names is just a way of
> making sure that there are no collisions in the names.
> With domain names, the "server" in your network can be
> differentiated from "server" in my network. This allows
> the different domains to name their machines independently
> of other domains.
>
>   The Internet will work even without DNS.
>
>   As long as we can remember the IP address of our
> favorite sites and they don't change their IP addresses,
> and ... I don't think there'd be much of a
> problem.  B-)
>
>