named-checkzone error "NSEC node already exists"
marka at isc.org
Mon Dec 6 22:27:59 UTC 2010
In message <AANLkTikW6pXuf-cZFrX+oGwXDZaAqmec2y3KQ0pxKKbq at mail.gmail.com>, jim
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> Running BIND 9.7.0-P2-RedHat-9.7.0-5.P2.el6
> New setup/install and attempting to setup DNSSEC and clean any dirty data.
> Got the zone signed and ran named-checkzone against it and got the following
> (11) times:
> addnode: NSEC node already exists
> The .signed loads but want to have clean before going live and not sure how
> to narrow down where these eleven duplicates are coming from?
> See these repeated eleven times in debug.log for each start of named,
> running debug of 3
> 06-Dec-2010 14:43:39.266 database: warning: addnode: NSEC node already
Ignore it. It's a artifact of the rbt implementation. The warning has been
removed in newer versions.
> Sorry, some more stupid questions on DNSSEC that I'm just confused about.
> 1) Do I sign my n.n.n.in-addr.arpa zone just like my domain.edu?
> # dnssec-keygen -r /dev/urandom n.n.n.in-addr.arpa
> # dnssec-keygen -f KSK -r /dev/urandom n.n.n.in-addr.arpa
> # named-checkzone -t /var/named n.n.n.in-addr.arpa dns.net.domain
> runs OK
> # dnssec-signzone -g -k Kn.n.n.in-addr.arpa.+005+33126.key -o
> n.n.n.in-addr.arpa dns.net-iup Kn.n.n.in-addr.arpa.+005+24720.key
Yes. A zone is a zone. There is nothing special about "reverse" zones as
far as the DNS is concerned. It the users of the DNS that treat it as special.
> 2) After I have my island of security setup and working, register the KSK
> public key with educause correct?
You register the zones with there parents. If educause is one of the parents
then yes, for that zone.
> 3) After registered with educause should I stop reading in
Publishing signed zones is independent of validating responses. I
would stop using dlv when it stops giving a benefit. At the moment there
are still lots of zones that can only be validated using dlv.
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742 INTERNET: marka at isc.org
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