Re: dns round robin - use for redundancy

["Ladd Hebert" <ladd@kryp.to>]

Right, unless ldap was doing DNS for you, which is probably not going to be the case, you'll still get that 50% chance of hitting the downed server. This is why you would want to set your TTL and maybe even some other timers to low settings, so you could get in and remove that server from DNS. (Personally, I set $TTL to 5 minutes, but you could go lower.) Of course, all of this is futile if you don't manage your own DNS, since you'd have to rely on someone else getting that entry out of the record in a fashionable time.

-Ladd 


> I understand that dns round robin will buy me some load balancing. 
>  However, I read in the ldap how-to that it can also provide a 
> redundancy effect.  How would that work?  If my main ldap server goes 
> down, dns does not
> know this and would continue to to dish out the main ldap server as an 
> answer.
> 
> Can someone clarify this for me ?
> 
> Thank you!
> 
> -- 
> Terry Davis
> Systems Administrator
> BirdDog Solutions, Inc.
> (402) 829-6059
> www.birddog.com


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