One domain, two hosts?

[Debbie]

I know I have seen something about this somewhere, but I can't find it...

Is it possible to host the same domain on two hosts (so you have a backup that will kick in when one goes down). If so, how do you do that? Just put in two different nameserver info or is there more to it than that?

[soapsud]

you can (sort of) do that with round robin DNS. but it's not at all an automatic kick in (which you won't get without some very expensive redundant solutions)

essentially, you have two A records for your domain (one at each host)

the problem is that if one goes down, nameservers will still be queried randomly (so half your visits, approximately, will still timem out)

the upside is that half your visits will still go to the other (up) host, which is better than 0 :)

anyhow, that's the poorman's approach to it.

[Debbie]

Ok thanks. :) I wasn't really sure about how that works.