dns A RR as failover

Aleksander aleksander at krediidiinfo.ee
Fri Feb 17 09:03:40 UTC 2006


This question does not concern bind directly, but DNS generally.

MX records are setup with priorities to create failover servers. That's 
nice. But could something like that be done with A records?

Say, if I specify two A records for domain.com, which one will the 
clients use and what if the first one they tried, fails? I can't specify 
priorities for them like with MX.

For example google.com has several A records. How does failover work for 
A records work in DNS?

Thanks in advance,

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