I have been thinking about this for a few days and I can't figure it out. The part after the domain has been resolved is easy. Load balancing isn't hard at all. However, I can't find a way to eliminate the time between DNS changes. I know there is Round Robin but it doesn't check if the given server is available so it is still possible to be unable to reach the page. Another possibility is to use a DNS service (like Rage4) but this doesn't remove the DNS time between changing. I'm pretty sure it isn't possible to remove that time, I was wondering if there is something like Round Robin only with a way to check if the server is available. And if not redirect them to a available server.
↧