Having done this myself, I think there are several situations in which it is common to look up a name shortly before adding it to a zone. e.g. you expect a name to exist, whoops, fix the omission, then have to wait a TTL. Or you are trying to come up with a domain name that hasn't already been registered and you forget to send the query to the TLD servers instead of the local cache.
If these is the worst problems that ANC causes, I think we agree they're not all that bad.
Can be quite annoying if the TTL is long. Even so, I like aggressive negative cacheing.
Same here. It solves real problems for things like IPv6 rDNS lookups. Regards, John Levine, [email protected], Taughannock Networks, Trumansburg NY Please consider the environment before reading this e-mail. _______________________________________________ DNSOP mailing list [email protected] https://www.ietf.org/mailman/listinfo/dnsop
