[dns-operations] best way to reprime root-hints?

Mark Andrews Mark_Andrews at isc.org
Tue Feb 5 00:57:39 UTC 2008

> > Why hope when you can just try it? There are only 13 to try :-)
> This assumes the name servers running on all instances are the same.   
> Are they?
> (Note that I assume that all instances on all servers support EDNS0).
> Regards,
> -drc
> P.S. I think setting the limit arbitrarily to 1200 is likely a  
> mistake.  Someday, not only will we have 13 AAAAs and 13 As, but we  
> may also have DNSSEC cruft.  Not sure all of that will fit in 1200...

	The DNSSEC cruft will only be returned if you set DO.
	"dig +bufsize=1200" does not set DO.  It's also unlikely
	to be fragmented.  It's also big enough for 13 AAAA's and
	13 A's.

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Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: Mark_Andrews at isc.org

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