Ancient configuration causing warnings / 2016-06-27

2016-06-27 Ancient configuration causing warnings
Lots of error messages showing up recently looking like:
Jun 27 12:02:23 greenblatt named[4789]: checkhints: ( missing from hints
Jun 27 12:02:23 greenblatt named[4789]: checkhints: ( extra record in hints
The hints come from the root-hints file which the resolver software (bind9) uses to know where to start resolving. I checked my db.root, which said:
;       last update:    Jun 17, 2010
;       related version of root zone:   2010061700
But it is from the ubuntu 12.04 bind9 package:
# dpkg -S /etc/bind/db.root
bind9: /etc/bind/db.root
Solution with help from How Do I Update The Root Hints Data File for BIND Named Server? - UNIX fu was getting the latest from which now says
;       last update:    March 23, 2016
;       related version of root zone:   2016032301
and I should get less warnings now. Comparing the two files shows changed IPv4 addresses for d.root-servers and h.root-servers, changed IPv6 addresses for a.root-servers and h.root-servers and added(!) IPv6 addresses for c.root-servers, d.root-servers, i.root-servers and j.root-servers.

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IPv6 check

Running test...
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