Can we load balance traf[f]ic for CNAME records?

WBrown at WBrown at
Fri Dec 14 19:33:28 UTC 2012

Manis Rane  wrote on 12/14/2012 02:12:59 PM:

> That is true by default rrset-order is cyclic I believe. And even if
> it replies randomly I guess we will have to NAT the traffic on 
> firewall for particular IPs

Your original post made me believe you are running Windows CAS servers. 
Why not use Windows High Availability features to bind one address to both 
servers.   A colleague was setting up a HA cluster for Exchange and was 
explaining some of it to me.  IIRC, you point to one IP address, and it 
points to one server, if it goes down, the other picks up the load.  You 
have MX records point to both of them, the client access uses a different 
address than the SMTP process.  At least that's how I understood it. 
Sorry, I'm not an Exchange guru.

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