On 3/17/2016 12:36:31 +0100 Ron<ron.a...@gmail.com> wrote:
Can bind be configured to not drop RR's from the cache when the upstream DNS server is unresponsive?
Hi, subject says all. Read manpages, could not find this in the FAQ's. Hope this is possible. If not does anyone know of other name servers that offer this option? Thanks, Ron Arts
It seems to me that one task of the BIND process is periodically to scan the cache to find entries whose TTL has expired. That process, per the DNS RFCs, will remove all entries whose TTL has expired. The process should not check to ensure that at least one of the upstream DNS servers is responsive, as by definition the record has expired and should not remain in DNS. It is the owner of the record who sets the TTL, and if the TTL is too short AND all of the DNS servers that serve that record are inaccessible, then the owner of the record has a problem. --Barry Finkel _______________________________________________ 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
