Load Balancer for DNS

sasa sasa sasasa20066 at yahoo.com
Tue Apr 6 07:46:55 UTC 2010


anycast looks fine and cheaper for us. 

Thanks everyone, I appreciate your help.

regards,
Sasa



________________________________
From: Dan Durrer <dan at vitalwerks.com>
To: Matthew Pounsett <matt at conundrum.com>
Cc: sasa sasa <sasasa20066 at yahoo.com>; bind dns <bind-users at lists.isc.org>
Sent: Mon, April 5, 2010 6:47:42 PM
Subject: Re: Load Balancer for DNS

Yes, we've been using the ip sla feature for some time now, works well.  Bgp/ ospf via quagga also are great solutions .  

Dan Durrer
No-ip.com

Sent from my iPad

On Apr 5, 2010, at 8:39 AM, Matthew Pounsett <matt at conundrum.com> wrote:

> 
> On 2010/04/05, at 02:06, sasa sasa wrote:
> 
>> Hello everyone,
>> 
>> Any one used any load balancer for DNSs? any recommendation? it's 2 caching-only DNSs, and I'd like to make a load balance between them using software.
> 
> Unless you're willing to spend a lot of money, load balancers are generally not the best way to go.  They tend to be specced out for "average" internet traffic, which has a much lower packets/megabit ratio than DNS traffic does.  You're much better off using routing protocols to balance traffic between DNS servers.
> 
> Have a look at this[1] how-to .. it'll point you to a technote by ISC about how to do OSPF anycast within a LAN, as well as explain a slightly simpler (but Cisco-only) solution.
> 
> Cheers,
>  Matt
> 
> [1] <http://mpounsett.blogspot.com/2009/02/load-balancing-dns-using-ciscos-ip-sla.html>
> 
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