Re: [cobalt-developers] Re: Secondary DNS

["Eaglewerks" <eaglewerks@xxxxxxxxxxxxxx>]

I am going to 'top-quote' this one, and reply in this venue, however I also
know that there may be a better list venue.

I have some expert knowledge in this potential problem, because I have had
some experience in recent interNIC changes.

First the reason we use two name servers (a name server is the machine that
tells the inquiring party what your IP number is) was because of the
original government perchent for redundancy.  And at the early stages of
'browsers' the method we used would look to a second answer if the first
failed to provide an answer...  (much like a mirrored file).  Later many of
the popular 'browsers' for brevity or by happen-chance failed to be able to
look for a secondary Name Server IP number, and hence many in our industry
(I am an IPP) tended to ignore the Secondary Name Server.

Recently I have noted that interNIC has been inverting the secondary and
primary name server information.  With that in mind, a functioning secondary
is important.   All name servers were once required to be registered, the
process via interNIC is simple.  Additionally all secondary or tertiary Name
Servers are supposed to be on different and separate backbones and
locations.   That way if one name server is not functioning because of that
portion of the net being down or perhaps lack of power (earthquake/nuclear
attack, etc)  the inquiring party has the ability to locate the secondary at
another (perhaps remote) location.

Again, secondary name servers are indeed needed.   Any multiple name servers
for the same web address should NOT be located at the same facility, nor
even on the same backbone.

So not confuse the term Name Server (ie: NS1.EAGLEWERKS.COM) with the term
DNS (which is a program within your cobalt machine).

Hope this made sense, and does not confuse the matter more than it already
was.

Bill Feldman

----- Original Message -----
From: "Colm Brazel" <cbweb@xxxxxx>
To: <cobalt-developers@xxxxxxxxxxxxxxx>
Sent: Friday, December 01, 2000 1:36 PM
Subject: [cobalt-developers] Re: Secondary DNS


>
> ----- Original Message -----
> From: Colm Brazel
> To: cobalt-developers@xxxxxxxxxxxxxxx
> Sent: Friday, December 01, 2000 9:32 PM
> Subject: Secondary DNS
>
>
> Hi,
>
> This is strictly newbie, so excuse me! Setting up DNS on the RAQ3 would
> anybody give advice on Secondary DNS, eg is it necessary to use a public
dns
> service such as http://soa.granitecanyon.com/ , the whole issue of
Secondary
> DNS or Mailservers
> not covered well in the docs, or I must be missing something elementary
here
>
> Regards
>
> Colm
>
> Colm (Brazel)
> CB Publications
> Internet www.cbweb.net
> E-mail cbweb@xxxxxx
>
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