Re: [cobalt-users] Swapping IP addresses on 2 raqs to improve DNS setup

[Gerald Waugh <gwaugh@xxxxxxxxxxxxxxxxxxxxxxx>]

On Friday 30 August 2002 19:42, Oleg Volkov wrote:
> On Fri, 30 Aug 2002, Peter wrote:
> > I am trying to add some redundancy by improving my DNS setup
>
> It is misunderstood of DNS service. While all computers
> come to full redundancy throught some cluster servce,
> DNS has redundancy on its application level.
>
> What is mean master/slave in DNS ? You have not duplicate
> non master, neither slave ! It is already redundant !
> Slave configuration copies its configuration from master
> automatic (at some period of time) without your intervention.
> While master fail, slave still available, and vice versa.
>
> Two different DNS servers configured as master/slave
> are definetely enought for any purpose. It is good
> practice that both of them resides on different networks
> and ISPs, however.

It is even better practice that they are not on the same server, which is the 
case in the orginal post.

Gerald
-- 
http://frontstreetnetworks.com         http://raqware.com
229 Front Street, Ste C, New Haven, CT 06513-3203
Phone: 203-785-0699