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
