On Tue, 18 Jan 2011, William Herrin wrote:
Net result is that in some cases a user's long-running browser will indefinitely ignore the change you made to the DNS. I've seen such things persist for months.
Do you have any recent evidence to support this? The what-browsers-do-with-what world changes daily... and my understanding is that a lot of these things that used to be problems have been changed.
For better or for worse, the way you -reliably- fail over a web server is with routing and middleboxes like a load balancer.
Alas, sometimes that's just not possible - try doing that @ EC2, for example (which is why I've recently been on the hunt for GSLB solutions that don't involve appliances...).
-- david raistrick http://www.netmeister.org/news/learn2quote.html dr...@icantclick.org http://www.expita.com/nomime.html
