Traffic on ROOT/GTLD-Servers

[Jim Reid]

>>>>> "Matt" == Matt Spiers <matt.spiers at uk.easynet.net> writes:

    Matt> Interesting read, was wondering about the validity of this
    Matt> part of the Conclusion:

    Matt> "BIND 8 does negative caching but not by default. BIND 9
    Matt> turns it on by default but is not yet widely deployed."

BIND8 has supported RFC2308-style negative caching since 8.2. You
might recall the endless questions in this list about the warning
message "No default TTL set using SOA minimum instead" because people
didn't have $TTL directives in their zone files that were required for
RFC2308 semantics. IIRC there was a crude form of negative caching in
BIND8: negative answers were cached for 5 or 10 minutes.