Re: DNS - Primary / Secondary on one machine

In comp.os.linux.setup Wayne <wayne@xxxxxxxxxxxxxx>:

"Davide Bianchi" <davideyeahsure@xxxxxxxxxxxxxx> wrote in message
news:slrnea4ic8.1bf.davideyeahsure@xxxxxxxxxxxxxxxxxxxxxx
On 2006-06-28, Wayne <wayne@xxxxxxxxxxxxxx> wrote:
Question: Can one machine act as both the primary and secondary DNS for
a
domain?

Sure he can, but what's the point of doing so? The idea of having two
DNSes is because if the first is down the second can take up the job, if
both are on the same system... the primary DNS is the only mandatory one,
then
you can have as many as you like.

Hi Davide,

The reason I would need to run two is that the domain registrar for (co.za)
domain names requires two DNS servers.

The fact that it all goes down (primary and secondary) doesnt matter much
because the sites are hosted on the same machine as the primary anyway.
(And its purely my personal sites).

It's generally a good idea two have an secondary off-site DNS, as
well as off site backup MX entry. What about mail for the domain?

The MTA might still be up even if your web server is down, or you
backup MX should just jump in. Ask your ISP, he might offer this
service for his customer more or less for free.

Think about that an error not reaching some http server because
it is down doesn't look as distracting as if the domain isn't
resolvable. Some people might not mention the difference others
might not come back because even DNS doesn't work.

I'd rethink your position.

Good luck

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