Re: [cobalt-users] DNS Replication

["CSN Support" <support@xxxxxxxxx>]

I understand how to setup DNS and how it works, i'm just not familiar with
the cobalts and linux.  I checked on my Raq4 and it allows me to specify
another ip of a dns server to replicate zones files to.  but on a raq2, how
is this accomplished?

Thanks,
Robert

----- Original Message -----
From: "Kul" <Webmaster@xxxxxxx>
To: <cobalt-users@xxxxxxxxxxxxxxx>
Sent: Tuesday, May 01, 2001 8:55 PM
Subject: Re: [cobalt-users] DNS Replication


> CSN Support wrote:
>
> > How do you setup a Raq to pull it's records from another Raq and
actually
> > get it to copy the records to it's own server.  I mean, otherwise if
your
> > primary Raq fails, then you'd have no DNS records unless they were
copied
> > over to another Raq as things changed.
> >
> > Thanks,
> > Robert
> >
> > -<snip>
>
> Hi Robert,
>
> I think what you are talking about is the standard dns setup.
> What typically happens with the dns system is that each domain has two or
more nameservers listed in its own zone as locations where an identicle copy
of the said information can be found. (Two is the typical number of
NameServers, but some domains only REQUIRE one.  However **one** NameServer
is concidered wildly dangerous, and most people opt for 2 or more
NameServers to look after the master and slave('s) zones.)
>
> You should have noticed when registering domains that many registras give
you the option of including two or more NameServers (usual format is ns1,
and ns2.somedoman.com)  NOTE: these NameServers have to be registered and
assigned to an IP.  (One NameServer per IP).
>
> As seen as you have two Raq's, you can set each Raq as a NameServer (if
you wish), and use ONE raq as the MASTER(primary) NameServer and the other
as the SLAVE(secondary....) NameServer.  Then you create the zone (a domains
dns record) on the MASTER NameServer, and subsequently create a zone on the
SLAVE.  This zone on the slave NameServer is initally just an instruction
for it to go and collect a copy from the master nameserver, which it usually
will do immediatly.  Then the original zone contains details about itself,
that the secondary nameserver willunderstand, like how often it should check
for updates of itself etc (typically the raq3's is 24 hours- default I
remember)
>
> If you have not setup a NameServer before, I strongly recommend you look
around and do some reading before you dive in, because if you make a mistake
setting up a nameserver (assinging it to an IP), it can take months
(sometimes many) to get the mistakes revoked !   You may want to read the
cobalt maunuals too !   Search google or such for some plain english
explanations for dns systems and nameservers.  I would recommed you do this
in advance of setting it up, it will save you many hours of pulling your
hair out wondering why nothing is happening.
>
> Try here, the pdf manuals explain much of the dns basics in moderatly
plain english:
> http://emea.cobalt.com/support/resources/howtos.html
>
> Have Fun
> --
> Regards,
> Kul
>
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