The DNS problem

[Andrei Barburas]

This statement is slightly wrong:

"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."

Two or more domain names can share the same IP address and not every
domain/site has a unique IP address. As for the Internet working without
the DNS, it is true when you refer to IPv6, not IPv4.

Cheers,



*Andrei Barburas*

Community Relations Services Officer



International Institute for Communication and Development (IICD)

P.O. Box 11586, 2502 AN The Hague, The Netherlands


Mobile: +31 62 928 2879

Phone: +31 70 311 7311
Fax: +31 70 311 7322
Website: www.iicd.org



*People  ** **ICT   Development*



On Wed, Aug 22, 2012 at 11:24 AM, Horacio T. Cadiz <hcadiz at ph.net> 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-)
>
>
> --
> Bombim Cadiz
> *******************************************
> *  Free/Open Source Software (FOSS) --  *
> * No windows. No gates. It is open.     *
> * No Bill. It is Free.                  *
> *******************************************
>
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