RE: [cobalt-users] two Raq with different DNS

[Derek Schwab <derek@xxxxxxxxxxxx>]

What if the secondary DNS pointed to a different web server with a  mirror of the site?

-----Original Message-----
From:	Murat Dagdelen [SMTP:murtix_cobalt@xxxxxxxxxxx]
Sent:	Thursday, June 21, 2001 10:06 PM
To:	cobalt-users@xxxxxxxxxxxxxxx
Subject:	Re: [cobalt-users] two Raq with different DNS




>From: "Rodolfo J. Paiz" <rpaiz@xxxxxxxxxxxxxx>
>Reply-To: cobalt-users@xxxxxxxxxxxxxxx
>To: cobalt-users@xxxxxxxxxxxxxxx
>Subject: Re: [cobalt-users] two Raq with different DNS
>Date: Thu, 21 Jun 2001 11:05:27 -0500
>
>At 6/13/01 10:36 AM +0100, you wrote:
>>Hi,
>>
>>I have two Raq's at different data centres and was wondering if I can add
>>some redundancy into a few of the sites hosted if I change
>>the dns of the domain to
>>
>>ns.box.one
>>ns2.box.two
>
>You *should* do primary DNS on one box and secondary on the other. This is
>the right way, as it ensures that the name is still found even is the site
>is down. Getting "page temporarily not available" from a browser (dns up,
>web down) is infinitely better than "host does not exist" (dns down, who
>cares what else is up).
>
>>would this mean that if the first box went down that the second box would
>>stats to serve the web pages or is there another method ?
>
>Not at all. DNS is one service. Mail is another. Web is another. FTP is
>another. They are all independently configured and set up. All, however,
>rely on DNS to work properly.
>
>Web services will not gain redundancy if you do DNS on the separate boxes.
>Search for:
>
>* redundancy
>* fault-tolerance
>* failover
>* clustering
>
>>or am I trying to do something which is imposable ??
>
>Not impossible. But nowhere near as easy as you thought at first. :)
>
>
>--
>Rodolfo J. Paiz
>rpaiz@xxxxxxxxxxxxxx
>
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