Tom <tomtux...@gmail.com> wrote: > > We're running BIND-9.12.3-P1 on our authoritative servers and we have the same > behavior with 0-ttl with a invalid soa-query. Is this bind-specific? Why does > an invalid soa-record responds with 0-ttl in the authority-section?
Funnily enough, this little obscurity came up elsewhere just last week. I had the same question back in 2012: https://lists.isc.org/pipermail/bind-users/2012-June/087843.html https://tools.ietf.org/html/draft-andrews-dnsext-soa-discovery The latter link explains the reason for this odd behaviour. [ Last week we also discussed an odd bit of text in RFC 1035: "For example, SOA records are always distributed with a zero TTL to prohibit caching." But RFC 2181 said you must no longer do that. ] https://twitter.com/fanf/status/1087708537600569344 Tony. -- f.anthony.n.finch <d...@dotat.at> http://dotat.at/ the quest for freedom and justice can never end _______________________________________________ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
