Advisory — D-root is changing its IPv4 address on the 3rd of January.

Mark Andrews marka at
Sat Dec 15 21:58:46 UTC 2012

In message <50CB882A.30502 at>, Jean-Francois Mezei writes:
> On 12-12-14 15:13, Jason Castonguay wrote:
> > I've given 3 weeks + 6 months (at least) notice on a service change that
> > will not be noticed by most anyone.  
> Upon hearing your announcement, I went and dig myself a new root.hints
> file from one of the root servers. the "D" root is still pointing to the
> old address. So I had to go in and manually edit the root.hints file
> myself. I blame you for all that extra work :-)

Yet you appear to have not read the announcement. :-)
> Would there be any impact to having the root servers immediatly provide
> the new IP for the D server so that a
> dig ns . > root.hints  would yield the new updated
> file ?

Then people would complain "You didn't give us any warning".  This is a
HEADSUP of an upcoming change.
> I realise that keeping the old IP functional for some time is important
> for all the static configurations. But does it matter if a dynamic list
> is updated "real time" without much advance warning ?

3 weeks is not a lot of "advance warning".

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

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