DNSSEC validation on 9.7.4 not working

[Mark Andrews]

In message <003d01d0ae24$682fc080$388f4180$@iname.com>, "Frank Bulk" writes:
> I'm running BIND 9.7.3 on Debian and having trouble configuring DNSSEC
> validation.  
> 
> I'm using the excellent guides at
> http://users.isc.org/~jreed/dnssec-guide/dnssec-guide.html#easy-start-guide-
> for-recursive-servers and
> https://www.surf.nl/binaries/content/assets/surf/en/knowledgebase/2012/rappo
> rt_Deploying_DNSSEC_v20.pdf and http://dnssec.vs.uni-due.de/ which provide
> 9.7.x configuration instructions and so I'm feeling a bit slow that I can't
> make this work.
> 
> I'm have a copy of bind.keys from
> https://www.isc.org/downloads/bind/bind-keys/ in /etc/bind/
> 
> This statement in /etc/bind/bind.conf:
> 
> managed-keys {
>       "." initial-key 257 3 8
> "AwEAAagAIKlVZrpC6Ia7gEzahOR+9W29euxhJhVVLOyQbSEW0O8gcCjF
> FVQUTf6v58fLjwBd0YI0EzrAcQqBGCzh/RStIoO8g0NfnfL2MTJRkxoX
> bfDaUeVPQuYEhg37NZWAJQ9VnMVDxP/VHL496M/QZxkjf5/Efucp2gaD
> X6RS6CXpoY68LsvPVjR0ZSwzz1apAzvN9dlzEheX7ICJBBtuA6G3LQpz
> W5hOA2hzCTMjJPJ8LbqF6dsV6DoBQzgul0sGIcGOYl7OyQdXfZ57relS
> Qageu+ipAdTTJ25AsRTAoub8ONGcLmqrAmRLKBP1dfwhYB4N7knNnulq QxA+Uk1ihz0=";
> };
> 
> and the following in /etc/bind/bind.conf.options:
> 
> options {
>        <snip>
>        dnssec-enable yes;
>        dnssec-validation yes;
>        <snip>
> }
> 
> But when I issue "rdnc reconifg" I immediately get repeated log lines about
> the following and then similar statements for each domains:
> 
> 23-Jun-2015 20:43:47.402 dnssec: info:   validating @0x7fcec948ce40: com DS:
> no valid signature found
> 23-Jun-2015 20:43:47.402 dnssec: info:   validating @0x7fcec8c41bf0: com DS:
> no valid signature found
> 23-Jun-2015 20:43:47.438 dnssec: info: validating @0x7fcec8c39b80: . NS: no
> valid signature found
> <snip>
> 23-Jun-2015 20:43:48.750 dnssec: info: validating @0x7fced04fd9e0: . NS: no
> valid signature found
> 23-Jun-2015 20:43:48.754 dnssec: info: validating @0x7fcee55996a0:
> a1075.dscg.akamai.net AAAA: bad cache hit (net/DS)
> 23-Jun-2015 20:43:48.757 dnssec: info: validating @0x7fceca621970:
> wwwp.wip.rackspace.com AAAA: bad cache hit (com/DS)
> 23-Jun-2015 20:43:48.759 dnssec: info: validating @0x7fceca621970:
> a1526.dscg.akamai.net AAAA: bad cache hit (net/DS)
> 23-Jun-2015 20:43:48.759 dnssec: info: validating @0x7fced04fd9e0:
> a1784.dscg.akamai.net AAAA: bad cache hit (net/DS)
> 23-Jun-2015 20:43:48.761 dnssec: info: validating @0x7fced04fd9e0:
> e1181.dscb.akamaiedge.net AAAA: bad cache hit (net/DS)
> 
> Of course, once the TLDs aren't considered valid everything goes south.  
> 
> What am I doing wrong?
> 
> Regards,
> 
> Frank Bulk

Are you sure that there isn't a firewall that is block RRSIGs getting
through or that you aren't using a forwarder that isn't also
validating.  These sorts of messages come when named is forced back
to plain DNS to get a response.

What do "dig +cd ds com" and "dig +cd dnskey ." return.  

Mark

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