We've got two servers. Nr1 (Linux) is the main one, Nr2 (W2K) just mirrors a few sites and databases and is used for backup.

Now what I would like is, in case Nr1 is stressed out or (taken) offline, to forward visitors to Nr2. I've looked at DNS Round-Robin, but that's not what I really want. Nr2 should only be used in case Nr1 can't handle the load, for whatever reason.

Any ideas on how to accomplish such a thing?

Thanbks :)

I think you can achieve this by using some proxy server at the front-end. This proxy server decides from where to serve the requests.

But then what if this proxy server is overloaded? :o may be you need some hardware solution, that means $$$ :eek:

Try searching the forum. May be this was discussed earlier.

Check this thread..

http://webhostingtalk.com/showthread.php?s=&threadid=28780