On Feb 21, 2004, at 7:01 PM, Marc Alaia wrote:
Hector Santos [mailto:winserver(_dot_)support(_at_)winserver(_dot_)com] wrote:
Question, some TXT lookups have a non-zero TTL assign to it. How
do you
get a non-zero TTL assigned to a TXT record?
Are you sure you have that right? A TXT record should have a non-zero
TTL.
Every valid DNS record has a TTL, no? Check out AOL's txt record:
http://www.dnsstuff.com/tools/lookup.ch?name=aol.com&type=TXT
or pobox's:
http://www.dnsstuff.com/tools/lookup.ch?name=pobox.com&type=TXT
Actually, I'm kind of surprised at how low the TTL's are for both the
above
domains (especially the NS TTL's)....
Zero is a valid ttl. Check http://www.ietf.org/rfc/rfc1035.txt for
details. There are lots of good reasons to have low (or 0) ttls; some
places use them to spot ratware that caches addr's longer than they are
supposed to.
George
// George Schlossnagle
// Postal Engine -- http://www.postalengine.com/
// Ecelerity: fastest MTA on earth