Wolfgang, Wolfgang S. Rupprecht wrote: > It has always bothered me that the TTL in the DNS record is stripped > off by the resolver code. There is already an indication in the DNS > record how long the issuer of the record wants it to be used. Careful > DNS admins will even go so far as creeping the TTL down as a cut-over > to a new IP address happens. It would be ideal for a long-running > program to just time out the IP address using this TTL and request a > new one whenever the old one expires.
The potential problem with that is dynamic DNS, which uses artificially low TTL values. I'm convinced that many pool servers have dynamic DNS names (but I haven't verified this). I would suggest that a better approach is (as others have proposed) not to re-resolve until there is a reachability problem. Cheers, Jan _______________________________________________ questions mailing list [email protected] https://lists.ntp.isc.org/mailman/listinfo/questions
