git-svn-id: https://unbound.nlnetlabs.nl/svn/trunk@4685 be551aaa-1e26-0410-a405-d3ace91eadb9
git-svn-id: https://unbound.nlnetlabs.nl/svn/trunk@2208 be551aaa-1e26-0410-a405-d3ace91eadb9
long. Hard to trigger, but NXDOMAINs for nameservers or CNAME targets have been more vulnerable to the TTL miscalculation bug. git-svn-id: https://unbound.nlnetlabs.nl/svn/trunk@1582 be551aaa-1e26-0410-a405-d3ace91eadb9