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

Jean-Francois Mezei jfmezei_nanog at
Fri Dec 14 19:03:42 UTC 2012

On 12-12-14 12:13, Joe Abley wrote:

> In summary, theory (and practice) tells us that:
> 1. You should update your hints file from time to time, and
> 2. If you don't, chances are overwhelmingly good that it will make no difference, and everything will work as normal.

But this is important to those who write DNS server software to ensure
they embed the most up to date  version of the root servers in their

There are also a number of much older systems which no longer get
software updates (such as VAX-VMS) so it is good practice to manually
maintain the root.hints files so that over time, you don't accumulate
more than a couple of disused root server IP addresses.

More information about the NANOG mailing list