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Quoting Peter Mueller <pmueller@xxxxxxxxxxxx>:
>
> Nice page, it has some good information. My company will be starting a
> second presence shortly. What are all the other LVS users doing? We
> had been looking at a 3DNS solution
> (http://www.f5.com/f5products/bigip/3dns/) or a multiple A record
> solution. After reading about the browser cache I think it will be the
> A record solution.
Is there not a device available that can do the following:
Be primary DNS for given domain (Actually a DNS proxy):
- Client request comes in for www.whatever.com, DNS proxy server asks the real
primary DNS server, and real DNS server responds with list of A Records.
- DNS proxy keeps "state" information of these A records, and returns list of
availabe to client(Could even move the geographically "closest" IP to the top
of the list), and also sets TTL to 5 or 10seconds for each DNS record.
- As the TTL is so low, subsequent requests *should* be requested from DNS
proxy?(Therefore hopefully avoiding DNS cache issues?)
- Device could also have some additional smarts...eg have a list
of "active"+"passive/failover" servers...
Regards,
MB
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