Thank you Petr! I found the problem, but quite by accident... There may be a Best Practice at hand that I wasn't aware of...
I still have the Windows AD server sitting on the side, serving as DHCP server and waiting patiently for my Cross Realm Trust; That server will forward DNS requests to the IPA server, and return a non-authoritative answer. Occasionally, that server will seemingly loose track of the IPA server, and stop returning results... And that happened while I was trying to follow through with your request for info... So as a quick work around, I simply dropped the AD server from my resolv.conf... And then performed your requests, without errors. I ran the DNS Update from the ipa-server-install script, and that worked without errors. I added the AD server back into resolv.conf, and everything failed again. I put the AD server as the SECOND name server in resolv.conf, and the errors went away. So I've clearly identified the problem. I uninstalled the client, and reinstalled the client, and everything went cleanly. To prevent this problem in the future... I will be changing the DHCP options to list the IPA DNS first for the Linux clients, and the AD DNS first for Windows clients; I still want the AD DNS server in the list, as a fallback. Is this plan the best practice here? On Wed, Oct 26, 2016 at 11:36 PM, Petr Spacek <pspa...@redhat.com> wrote: > On 27.10.2016 04:43, Tyrell Jentink wrote: > >> 2016-10-26T23:30:40Z DEBUG Writing nsupdate commands to > >> > /etc/ipa/.dns_update.txt: > >> > 2016-10-26T23:30:40Z DEBUG debug > >> > > >> > update delete trainmaster.ipa.rxrhouse.net. IN A > >> > show > >> > send > >> > > >> > update delete trainmaster.ipa.rxrhouse.net. IN AAAA > >> > show > >> > send > >> > > >> > update add trainmaster.ipa.rxrhouse.net. 1200 IN A 10.42.0.100 > >> > show > >> > send > >> > > >> > 2016-10-26T23:30:40Z DEBUG Starting external process > >> > 2016-10-26T23:30:40Z DEBUG args=/usr/bin/nsupdate -g > >> > /etc/ipa/.dns_update.txt > >> > 2016-10-26T23:30:40Z DEBUG Process finished, return code=1 > >> > 2016-10-26T23:30:40Z DEBUG stdout=Outgoing update query: > >> > ;; ->>HEADER<<- opcode: UPDATE, status: NOERROR, id: 0 > >> > ;; flags:; ZONE: 0, PREREQ: 0, UPDATE: 0, ADDITIONAL: 0 > >> > ;; UPDATE SECTION: > >> > trainmaster.ipa.rxrhouse.net. 0 ANY A > >> > > >> > Outgoing update query: > >> > ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 39562 > >> > ;; flags:; QUESTION: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1 > >> > ;; QUESTION SECTION: > >> > ;3107127915.sig-ipa-pdc.ipa.rxrhouse.net. ANY TKEY > >> > > >> > ;; ADDITIONAL SECTION: > >> > 3107127915.sig-ipa-pdc.ipa.rxrhouse.net. 0 ANY TKEY gss-tsig. > 1477524640 > [...] > >> > > >> > 2016-10-26T23:30:40Z DEBUG stderr=Reply from SOA query: > >> > ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 38738 > >> > ;; flags: qr aa rd ra; QUESTION: 1, ANSWER: 0, AUTHORITY: 1, > ADDITIONAL: 0 > >> > ;; QUESTION SECTION: > >> > ;trainmaster.ipa.rxrhouse.net. IN SOA > >> > > >> > ;; AUTHORITY SECTION: > >> > ipa.rxrhouse.net. 0 IN SOA > ipa-pdc.ipa.rxrhouse.net. > >> > hostmaster.ipa.rxrhouse.net. 1477524446 3600 900 1209600 3600 > >> > > >> > Found zone name: ipa.rxrhouse.net > >> > The master is: ipa-pdc.ipa.rxrhouse.net > >> > start_gssrequest > >> > Found realm from ticket: IPA.RXRHOUSE.NET > >> > send_gssrequest > >> > recvmsg reply from GSS-TSIG query > >> > ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 39562 > >> > ;; flags: qr; QUESTION: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0 > >> > ;; QUESTION SECTION: > >> > ;3107127915.sig-ipa-pdc.ipa.rxrhouse.net. ANY TKEY > >> > > >> > ;; ANSWER SECTION: > >> > 3107127915.sig-ipa-pdc.ipa.rxrhouse.net. 0 ANY TKEY gss-tsig. > 1466301805 > >> > 1466388205 3 NOERROR 101 > >> > YGMGCSqGSIb3EgECAgMAflQwUqADAgEFoQMCAR6kERgPMjAxNjA2MTkw > >> > MjAzMjVapQUCAwHGkaYDAgEpqREbD0FELlJYUkhPVVNFLk5FVKoUMBKg > >> > AwIBAaELMAkbB2FkLXBkYyQ= > >> > 0 > >> > > >> > dns_tkey_negotiategss: failure GSSAPI error: Major = Unspecified GSS > >> > failure. Minor code may provide more information, Minor = Message > stream > >> > modified. > >> > > >> > 2016-10-26T23:30:40Z DEBUG nsupdate failed: Command > '/usr/bin/nsupdate -g > >> > /etc/ipa/.dns_update.txt' returned non-zero exit status 1 > >> > 2016-10-26T23:30:40Z ERROR Failed to update DNS records. > >> > 2016-10-26T23:30:40Z DEBUG DNS resolver: Query: > >> > trainmaster.ipa.rxrhouse.net IN A > >> > 2016-10-26T23:30:40Z DEBUG DNS resolver: No record. > >> > 2016-10-26T23:30:40Z DEBUG DNS resolver: Query: > >> > trainmaster.ipa.rxrhouse.net IN AAAA > >> > 2016-10-26T23:30:40Z DEBUG DNS resolver: No record. > >> > 2016-10-26T23:30:40Z DEBUG DNS resolver: Query: > 100.0.42.10.in-addr.arpa. > >> > IN PTR > >> > 2016-10-26T23:30:40Z DEBUG DNS resolver: No record. > >> > 2016-10-26T23:30:40Z WARNING Missing A/AAAA record(s) for host > >> > trainmaster.ipa.rxrhouse.net: 10.42.0.100. > >> > 2016-10-26T23:30:40Z WARNING Missing reverse record(s) for > address(es): > >> > 10.42.0.100. > >> > > > -- Full logs can be found here: http://pastebin.com/90dG9Ffu > > > > - For grins, I decided to test: > > kinit admin > > id admin > > getent passwd admin > > on the client, and all of those all made valid responses... So > > authentication is working, I just can't update DNS records. > > > > > > So that's what I've tried, and where I'm at... My client machines > running > > modern client software can NOT update DNS records, complaining about > GSSAPI > > "Message Stream Modified" errors... And I have no idea how to > troubleshoot > > that... Any ideas? > > Interesting, I haven't seen this one :-) > > There is something fishy in GSSAPI negotiation between the client and DNS > server. > > I would try this (and watch out for suspicious messages along the way): > > 1) To be sure, please double-check that ipa-pdc.ipa.rxrhouse.net. resolves > (from the client) to correct IP address of IPA DNS server. > > 2) Verify that Kerberos ticket for the DNS server can be obtained: > $ kinit -k > $ kvno DNS/ipa-pdc.ipa.rxrhouse.net > $ klist # it should list Kerberos ticket for ipa-pdc.ipa.rxrhouse.net > > 3) Create a plain text file with update message content: > cat > /tmp/dnsupdate <<<EOF > debug > update delete trainmaster.ipa.rxrhouse.net. IN A > send > EOF > > 4) call nsupdate on it > $ KRB5_TRACE=/dev/stdout nsupdate -g /tmp/dnsupdate > > Does it produce the same error? (It should, but with more debuginfo.) > > > What version of server and client packages are you using? > > -- > Petr^2 Spacek > > -- > Manage your subscription for the Freeipa-users mailing list: > https://www.redhat.com/mailman/listinfo/freeipa-users > Go to http://freeipa.org for more info on the project >
-- Manage your subscription for the Freeipa-users mailing list: https://www.redhat.com/mailman/listinfo/freeipa-users Go to http://freeipa.org for more info on the project