I have been playing around with DNS round robin, and just need a few things clarified...
The system i have been playing around is configured as follows:
Windows 2003/08 Enviroment
Host A Record: blah.company.com 172.16.1.100
Host A Record: blah.company.com 172.16.1.102
Host A Record: blah.company.com 172.16.1.103
I have been trying to understand when the ‘round robin’ comes into effect. I noticed if I ping 'blah.company.com' it returns 172.16.1.100. Then once i 'ipconfig /flushdns' and try to ping 'blah.company.com' it returns the same 172.16.1.100 IP. Could someone could verify if the ‘round robin’ does come into effect here or not?
Another thing I noticed is if I set the TTL for the 'blah.company.com' record to something very small, such as 1 second, the 'round robin effect' seems to work when I do a ipconfig /flushdns then a ping... I understand that this would be creating unnecessary traffic to the DNS servers but just thought someone could shed some light on this too.
Another thing i was looking at is, load balancing Active Directory using this round robin technique. Could someone please tell me the most efficient way to do this or is the round robin technique flawed?