[Freeipa-users] Could not update DNSSSHFP records when joining domain

[nathan at nathanpeters.com]

> I am running FreeIPA 4.1.3 on CentOS7.
>
> I am attempting to join a CentOS 6.5 client using ipa-client 3.0.0-42.
>
> The client hostname is ipaclient.login.mydomain.net.
>
> The FreeIPA domain is mydomain.net.
>
> This post here :
> https://www.redhat.com/archives/freeipa-users/2015-April/msg00368.html
> states that making all dns entries into a single zone rather than having a
> separate zone for login.mydomain.net is a perfectly acceptable design
> choice.
>
> However, an issue occurs when joining the client.  It joins to the domain
> fine and creates the initial DNS A entry, but then according to the logs,
> when it goes to update the DNSSSHFP records, it fails because it tries to
> update the nonexistent zone login.mydomain.net instead of just updating
> mydomain.net. To be clear, the SSH host keys are in the client record so
> the only issue is with adding them to DNS
>
> Here are the relevant log entries generated with ipa-client-install:
>
> 2015-06-03T16:11:12Z DEBUG stderr=
> 2015-06-03T16:11:12Z DEBUG Writing nsupdate commands to
> /etc/ipa/.dns_update.txt:
> 2015-06-03T16:11:12Z DEBUG zone login.mydomain.net.
> update delete ipaclient.login.mydomain.net. IN SSHFP
> send
> update add ipaclient.login.mydomain.net. 1200 IN SSHFP 1 1
> 1D17A1B7DCB75242AEBBBFEF7CE68844B530AE60
> update add ipaclient.login.mydomain.net. 1200 IN SSHFP 2 1
> 11D3F076F616F02AD74BFF4D48E8BBA239063E8F
> send
>
> 2015-06-03T16:11:13Z DEBUG args=/usr/bin/nsupdate -g
> /etc/ipa/.dns_update.txt
> 2015-06-03T16:11:13Z DEBUG stdout=
> 2015-06-03T16:11:13Z DEBUG stderr=update failed: NOTAUTH
> update failed: NOTAUTH
>
> 2015-06-03T16:11:13Z DEBUG nsupdate failed: Command '/usr/bin/nsupdate -g
> /etc/ipa/.dns_update.txt' returned non-zero exit status 2
> 2015-06-03T16:11:13Z WARNING Could not update DNS SSHFP records.
>
>
>
> --
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>

Here are some more entries from /var/named/data/named.run.

You'll notice in the first set of entries, I added the hosts with the
incorrect subdomain set and it worked fine.

In the second set, I gave the correct hostnames and even though it claims
it's still trying to update the mydomain.net file it says it's not
authorized.  I am thoroughly confused by this behavior.

successful
----------
01-Jun-2015 18:36:04.580 client 10.21.5.206#40096/key
host/ipaclient.mydomain.net\@mydomain.NET: updating zone
'mydomain.net/IN': deleting rrset at 'ipaclient.mydomain.net' A
01-Jun-2015 18:36:04.590 client 10.21.5.206#34641/key
host/ipaclient.mydomain.net\@mydomain.NET: updating zone
'mydomain.net/IN': adding an RR at 'ipaclient.mydomain.net' A
01-Jun-2015 18:36:25.582 client 10.21.5.206#49800/key
host/ipaclient.mydomain.net\@mydomain.NET: updating zone
'mydomain.net/IN': deleting rrset at 'ipaclient.mydomain.net' SSHFP
01-Jun-2015 18:36:25.595 client 10.21.5.206#34081/key
host/ipaclient.mydomain.net\@mydomain.NET: updating zone
'mydomain.net/IN': adding an RR at 'ipaclient.mydomain.net' SSHFP
01-Jun-2015 18:36:26.363 client 10.21.5.206#34081/key
host/ipaclient.mydomain.net\@mydomain.NET: updating zone
'mydomain.net/IN': adding an RR at 'ipaclient.mydomain.net' SSHFP

unsuccessful
------------
03-Jun-2015 16:10:56.407 client 10.21.5.206#52739/key
host/ipaclient.login.mydomain.net\@mydomain.NET: updating zone
'mydomain.net/IN': update failed: not authoritative for update zone
(NOTAUTH)
03-Jun-2015 16:10:56.420 client 10.21.5.206#50551/key
host/ipaclient.login.mydomain.net\@mydomain.NET: updating zone
'mydomain.net/IN': update failed: not authoritative for update zone
(NOTAUTH)
03-Jun-2015 16:11:12.993 client 10.21.5.206#39633/key
host/ipaclient.login.mydomain.net\@mydomain.NET: updating zone
'mydomain.net/IN': update failed: not authoritative for update zone
(NOTAUTH)
03-Jun-2015 16:11:13.005 client 10.21.5.206#50415/key
host/ipaclient.login.mydomain.net\@mydomain.NET: updating zone
'mydomain.net/IN': update failed: not authoritative for update zone
(NOTAUTH)