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Hello Jeremy,
I'm having a hard time understanding why you would possibly load
balancer a DNS server in this fashion.
Do you receive so many DNS requests a single system can handle the
requests?
Why do you lack confidence in the DNS protocols built in Round Robin
like redundancy?
Is there some other serious advantage that I'm not seeing?
I've always ran my DNS Servers by having 2, 3 or 4 unique DNS servers
all on different networks. If one goes offline it has never been a major
issue, the protocol is designed to go to the next DNS server on the list
provided by the Evil Empire (verisign)
Thanks,
Michael
> Today, LVS on our director for some reason stopped forwarding DNS requests
> to the realservers. On each realserver I have 2 bind processes running,
one
> in recursive mode only listing on port 53, and another doing authoritative
> requests listing on port 5353. On the director port 53 on one IP forwards
> to port 53 on the realservers and port 53 on the other director ip
forwards
> to port 5353 on the realservers.
>
> Both of these died at roughly the same time. Doing an ipvsadm -ln I found
> the following:
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