On Fri, 3 Nov 2006, jdow wrote:
From: "Bruno Wolff III" <bruno@xxxxxxxx>
>Edward Dekkers <edward@xxxxxxxxxxxxxxxxxxxx> wrote:
>
>> Originally I thought I could just run DNS here on my Linux box. But
>> apparently from what I understand of the reading I'm doing I'd need two
>> servers to do this.
For a home DSL system having two DNS servers is overkill. If your network
is
down none of your services are going to be working anyway, so having a DNS
on another network isn't going to help.
Some registrars may enforce this requirement though. If so you might be
able
to make a deal with another person in a similar situation to provide DNS
service for each other.
For more arguments on why you don't really need two DNS servers in this
case
see:
http://cr.yp.to/djbdns/third-party.html
If it goes down for an extended period of time, as with a power loss
and the UPS ran down, then when the UPS and machine come back up say
a day or two later it will take a long time for the various DNS servers
to find it again. It's better to have someone providing secondary
name server for you. It's usually cheap. And you can configure it to
update from your name server when you change your server's data.
And on top of that a minimum of 2 geographically diverse nameservers are
required by RFC.
PLEASE, if your not going to do it right do NOT do it. When you think you
have things setup correctly go here: http://www.dnsreport.com/ and see
if you really do. you would be suprised how easy it is to get things wrong.
Regards,
--
Tom Diehl tdiehl@xxxxxxxxxxxx Spamtrap address mtd123@xxxxxxxxxxxx
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