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Bug 958140 - PTR record synchronization deletes all data under reverse name
Summary: PTR record synchronization deletes all data under reverse name
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: bind-dyndb-ldap
Version: 7.0
Hardware: Unspecified
OS: Unspecified
medium
unspecified
Target Milestone: rc
: ---
Assignee: Petr Spacek
QA Contact: Namita Soman
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2013-04-30 13:23 UTC by Dmitri Pal
Modified: 2015-01-21 15:41 UTC (History)
3 users (show)

Fixed In Version: bind-dyndb-ldap-3.5-1.el7
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2014-06-13 10:32:29 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)

Description Dmitri Pal 2013-04-30 13:23:33 UTC 
This bug is created as a clone of upstream ticket:
https://fedorahosted.org/bind-dyndb-ldap/ticket/115

PTR record synchronization sometimes delete all data under name in reverse tree (e.g. `1.2.0.192.in-addr.arpa.`).

'''Inputs'''

Forward zone:
{{{
test.example.com.       3600 IN  A  192.0.2.1
}}}

Reverse zone:
{{{
1.2.0.192.in-addr.arpa. 3600 IN PTR test.example.com.
1.2.0.192.in-addr.arpa. 3600 IN TXT "address reserved for DNS tests"
}}}

Update:
{{{
update delete test.example.com. IN A 192.0.2.1
}}}

'''Result'''

Forward zone:
* Name `test.example.com.` does not exist.

Reverse zone:
* Name `1.2.0.192.in-addr.arpa.` does not exist.

Reverse zone should contain the original TXT record, only PTR record should be deleted:
{{{
1.2.0.192.in-addr.arpa. 3600 IN TXT "address reserved for DNS tests"
}}}
Comment 2 Petr Spacek 2013-05-21 11:42:33 UTC 
Fixed upstream by commit 1c63c045b5238fb675b7a517876869bcace2cdab.
Comment 3 Xiyang Dong 2014-01-15 20:36:45 UTC 
When I delete the A record ,however it's reverse record did not get deleted.Is this a bug or if not ,could you provide the correct steps to verify ?

[root@70master ipa-ctl]# ipa dnszone-add example.com. --admin-email=hostmaster.example.com. --name-server=ns --ip-addr=127.0.0.1
  Zone name: example.com.
  Authoritative nameserver: ns
  Administrator e-mail address: hostmaster.example.com.
  SOA serial: 1389813544
  SOA refresh: 3600
  SOA retry: 900
  SOA expire: 1209600
  SOA minimum: 3600
  BIND update policy: grant TESTRELM.COM krb5-self * A; grant TESTRELM.COM krb5-self * AAAA; grant TESTRELM.COM
                      krb5-self * SSHFP;
  Active zone: TRUE
  Dynamic update: FALSE
  Allow query: any;
  Allow transfer: none;

[root@70master ipa-ctl]# ipa dnszone-add 3.2.1.in-addr.arpa. --admin-email=hostmaster.3.2.1.in-addr.arpa. --name-server=ns.example.com.
  Zone name: 3.2.1.in-addr.arpa.
  Authoritative nameserver: ns.example.com.
  Administrator e-mail address: hostmaster.3.2.1.in-addr.arpa.
  SOA serial: 1389817156
  SOA refresh: 3600
  SOA retry: 900
  SOA expire: 1209600
  SOA minimum: 3600
  BIND update policy: grant TESTRELM.COM krb5-subdomain 3.2.1.in-addr.arpa. PTR;
  Active zone: TRUE
  Dynamic update: FALSE
  Allow query: any;
  Allow transfer: none;

[root@70master ipa-ctl]# ipa dnsrecord-add example.com. test --a-rec=1.2.3.4 --a-create-reverse
  Record name: test
  A record: 1.2.3.4

[root@70master ipa-ctl]# dig test.example.com.

; <<>> DiG 9.9.4-RedHat-9.9.4-9.el7 <<>> test.example.com.
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 63180
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 2

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;test.example.com.		IN	A

;; ANSWER SECTION:
test.example.com.	86400	IN	A	1.2.3.4

;; AUTHORITY SECTION:
example.com.		86400	IN	NS	ns.example.com.

;; ADDITIONAL SECTION:
ns.example.com.		86400	IN	A	1.2.3.4

[root@70master ipa-ctl]# ipa dnsrecord-add 3.2.1.in-addr.arpa. 4 --txt-rec="text"
  Record name: 4
  PTR record: test.example.com.
  TXT record: text

[root@70master ipa-ctl]# dig -x 1.2.3.4

; <<>> DiG 9.9.4-RedHat-9.9.4-9.el7 <<>> -x 1.2.3.4
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 50379
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 2

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;4.3.2.1.in-addr.arpa.		IN	PTR

;; ANSWER SECTION:
4.3.2.1.in-addr.arpa.	86400	IN	PTR	test.example.com.

;; AUTHORITY SECTION:
3.2.1.in-addr.arpa.	86400	IN	NS	ns.example.com.

;; ADDITIONAL SECTION:
ns.example.com.		86400	IN	A	127.0.0.1


[root@70master ipa-ctl]# ipa dnsrecord-del example.com. test --a-rec=1.2.3.4
---------------------
Deleted record "test"
---------------------

[root@70master ipa-ctl]# ipa dnsrecord-find example.com.
  Record name: @
  NS record: ns

  Record name: _kerberos
  TXT record: TESTRELM.COM

  Record name: ns
  A record: 127.0.0.1
----------------------------
Number of entries returned 3
----------------------------

[root@70master ipa-ctl]# ipa dnsrecord-find 3.2.1.in-addr.arpa.
  Record name: 4
  PTR record: test.example.com.
  TXT record: text

  Record name: @
  NS record: ns.example.com.

[root@70master ipa-ctl]# dig -x 1.2.3.4

; <<>> DiG 9.9.4-RedHat-9.9.4-9.el7 <<>> -x 1.2.3.4
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 2067
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 2

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;4.3.2.1.in-addr.arpa.		IN	PTR

;; ANSWER SECTION:
4.3.2.1.in-addr.arpa.	86400	IN	PTR	test.example.com.

;; AUTHORITY SECTION:
3.2.1.in-addr.arpa.	86400	IN	NS	ns.example.com.

;; ADDITIONAL SECTION:
ns.example.com.		86400	IN	A	127.0.0.1


[root@70master ipa-ctl]# dig -x 1.2.3.4 -t TXT

; <<>> DiG 9.9.4-RedHat-9.9.4-9.el7 <<>> -x 1.2.3.4 -t TXT
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 6236
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 2

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;4.3.2.1.in-addr.arpa.		IN	TXT

;; ANSWER SECTION:
4.3.2.1.in-addr.arpa.	86400	IN	TXT	"text"

;; AUTHORITY SECTION:
3.2.1.in-addr.arpa.	86400	IN	NS	ns.example.com.

;; ADDITIONAL SECTION:
ns.example.com.		86400	IN	A	127.0.0.1
Comment 4 Petr Spacek 2014-01-16 08:33:40 UTC 
You have to enable PTR record synchronization and use 'nsupdate -g'  to do updates. I'm sorry that it is not clear from the bug description.

PTR record synchronization is described at:
https://fedorahosted.org/bind-dyndb-ldap/wiki/BIND9/SyncPTR
Comment 5 Xiyang Dong 2014-01-17 14:07:15 UTC 
after checking PTR record sync doc I found:

Forward and reverse zones are hosted on the same server inside the same bind-dyndb-ldap instance.

    Both zones are managed by bind-dyndb-ldap driver declared in the one dynamic-db section of /etc/named.conf. 

Say my machine is 70master.testrelm.com and right now named.conf is:

...
dynamic-db "ipa" {
	library "ldap.so";
	arg "uri ldapi://%2fvar%2frun%2fslapd-TESTRELM-COM.socket";
	arg "base cn=dns, dc=testrelm,dc=com";
	arg "fake_mname 70master.testrelm.com.";
	arg "auth_method sasl";
	arg "sasl_mech GSSAPI";
	arg "sasl_user DNS/70master.testrelm.com";
	arg "serial_autoincrement yes";
};

If I want to set up test.sample.com. and with A record 1.2.3.4 for testing,
What it the correct config for both zones sample.com. and 3.2.1.in-addr.arpa. in dynamic-db part ?


and for this config requirement:
    FreeIPA's default update policy for forward zones is: grant EXAMPLE.COM krb5-self * A; grant EXAMPLE.COM krb5-self * AAAA; grant EXAMPLE.COM krb5-self * SSHFP; where EXAMPLE.COM is your Kerberos REALM. 

my current kerberos REALM is TESTRELM.COM ,so  I need to temporarily change it to EXAMPLE.COM for this test and then change it back?
Comment 6 Petr Spacek 2014-01-17 14:31:32 UTC 
(In reply to Xiyang Dong from comment #5)
> If I want to set up test.sample.com. and with A record 1.2.3.4 for testing,
> What it the correct config for both zones sample.com. and
> 3.2.1.in-addr.arpa. in dynamic-db part ?

The original configuration in named.conf is perfectly fine, use only IPA CLI for configuration if you don't need something special.

> and for this config requirement:
>     FreeIPA's default update policy for forward zones is: grant EXAMPLE.COM
> krb5-self * A; grant EXAMPLE.COM krb5-self * AAAA; grant EXAMPLE.COM
> krb5-self * SSHFP; where EXAMPLE.COM is your Kerberos REALM. 
> 
> my current kerberos REALM is TESTRELM.COM ,so  I need to temporarily change
> it to EXAMPLE.COM for this test and then change it back?
EXAMPLE.COM should be automatically replaced by IPA installer, you should see TESTRELM.COM in the output from
$ ipa dnszone-show --all <yourzone>

Default policy is automatically added to new DNS zones so you don't need to touch it.

Configuration described https://fedorahosted.org/bind-dyndb-ldap/wiki/BIND9/SyncPTR#QuickConfigurationforFreeIPA is valid, just follow steps in the text.
Comment 7 Xiyang Dong 2014-01-21 14:25:07 UTC 
Hi Petr ,
I still got refused when doing the update. Below are my steps:

[root@70master ~]# kinit admin
Password for admin: 
[root@70master ~]# testZone=example.com
[root@70master ~]# ipa dnszone-add $testZone --admin-email=hostmaster.$testZone --name-server=ns --ip-address=127.0.0.1
  Zone name: example.com
  Authoritative nameserver: ns
  Administrator e-mail address: hostmaster.example.com.
  SOA serial: 1390313346
  SOA refresh: 3600
  SOA retry: 900
  SOA expire: 1209600
  SOA minimum: 3600
  BIND update policy: grant TESTRELM.COM krb5-self * A; grant TESTRELM.COM krb5-self
                      * AAAA; grant TESTRELM.COM krb5-self * SSHFP;
  Active zone: TRUE
  Dynamic update: FALSE
  Allow query: any;
  Allow transfer: none;
[root@70master ~]# testReverseZone=3.2.1.in-addr.arpa.
[root@70master ~]# ipa dnszone-add $testReverseZone --admin-email=hostmaster.$testReverseZone --name-server=ns.$testZone.
  Zone name: 3.2.1.in-addr.arpa.
  Authoritative nameserver: ns.example.com.
  Administrator e-mail address: hostmaster.3.2.1.in-addr.arpa.
  SOA serial: 1390313374
  SOA refresh: 3600
  SOA retry: 900
  SOA expire: 1209600
  SOA minimum: 3600
  BIND update policy: grant TESTRELM.COM krb5-subdomain 3.2.1.in-addr.arpa. PTR;
  Active zone: TRUE
  Dynamic update: FALSE
  Allow query: any;
  Allow transfer: none;
 [root@70master ~]# ipa dnsrecord-add $testZone test --a-rec=1.2.3.4 --a-create-reverse
  Record name: test
  A record: 1.2.3.4
[root@70master ~]# ipa dnsrecord-add $testReverseZone 4 --txt-rec=text
  Record name: 4
  PTR record: test.example.com.
  TXT record: text

[root@70master ~]# ipa dnszone-mod $testZone --dynamic-update=TRUE
  Zone name: example.com
  Authoritative nameserver: ns
  Administrator e-mail address: hostmaster.example.com.
  SOA serial: 1390313485
  SOA refresh: 3600
  SOA retry: 900
  SOA expire: 1209600
  SOA minimum: 3600
  Active zone: TRUE
  Dynamic update: TRUE
  Allow query: any;
  Allow transfer: none;
[root@70master ~]# testRelm=TESTRELM.COM
[root@70master ~]# ipa dnszone-mod $testZone --update-policy='grant $testRelm krb5-self * A; grant $testRelm krb5-self * AAAA; grant $testRelm krb5-self * SSHFP;'
  Zone name: example.com
  Authoritative nameserver: ns
  Administrator e-mail address: hostmaster.example.com.
  SOA serial: 1390313485
  SOA refresh: 3600
  SOA retry: 900
  SOA expire: 1209600
  SOA minimum: 3600
  BIND update policy: grant $testRelm krb5-self * A; grant $testRelm krb5-self *
                      AAAA; grant $testRelm krb5-self * SSHFP;
  Active zone: TRUE
  Allow query: any;
  Allow transfer: none;
[root@70master ~]# ipa dnszone-mod $testZone --allow-sync-ptr=TRUE
  Zone name: example.com
  Authoritative nameserver: ns
  Administrator e-mail address: hostmaster.example.com.
  SOA serial: 1390313485
  SOA refresh: 3600
  SOA retry: 900
  SOA expire: 1209600
  SOA minimum: 3600
  Active zone: TRUE
  Allow query: any;
  Allow transfer: none;
  Allow PTR sync: TRUE
[root@70master ~]# ipa dnszone-mod $testReverseZone --dynamic-update=TRUE
  Zone name: 3.2.1.in-addr.arpa.
  Authoritative nameserver: ns.example.com.
  Administrator e-mail address: hostmaster.3.2.1.in-addr.arpa.
  SOA serial: 1390313492
  SOA refresh: 3600
  SOA retry: 900
  SOA expire: 1209600
  SOA minimum: 3600
  Active zone: TRUE
  Dynamic update: TRUE
  Allow query: any;
  Allow transfer: none;

 [root@70master ~]# ipa host-add test.$testZone
-----------------------------
Added host "test.example.com"
-----------------------------
  Host name: test.example.com
  Principal name: host/test.example.com
  Password: False
  Keytab: False
  Managed by: test.example.com
[root@70master ~]# TmpDir=/tmp
[root@70master ~]# MASTER=`hostname`
[root@70master ~]# ipa-getkeytab -s $MASTER -p host/test.$testZone@$testRelm -k $TmpDir/bz958140.keytab
Keytab successfully retrieved and stored in: /tmp/bz958140.keytab

[root@70master ~]#         cat > $TmpDir/nsupdate.txt << EOF
> debug
> update delete test.$testZone IN A 1.2.3.4
> send
> EOF
[root@70master ~]# 
[root@70master ~]# kinit -k -t $TmpDir/bz958140.keytab host/test.$testZone

[root@70master ~]# nsupdate -g $TmpDir/nsupdate.txt
Reply from SOA query:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id:  50755
;; flags: qr aa rd ra; QUESTION: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
;; QUESTION SECTION:
;test.example.com.		IN	SOA

;; AUTHORITY SECTION:
example.com.		3600	IN	SOA	70master.testrelm.com. hostmaster.example.com. 1390313485 3600 900 1209600 3600

Found zone name: example.com
The master is: 70master.testrelm.com
start_gssrequest
Found realm from ticket: TESTRELM.COM
send_gssrequest
Outgoing update query:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id:  58456
;; flags:; QUESTION: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1
;; QUESTION SECTION:
;2624493634.sig-70master.testrelm.com. ANY TKEY

;; ADDITIONAL SECTION:
2624493634.sig-70master.testrelm.com. 0	ANY TKEY gss-tsig. 1390313831 1390313831 3 NOERROR 643 YIICfwYJKoZIhvcSAQICAQBuggJuMIICaqADAgEFoQMCAQ6iBwMFACAA AACjggFwYYIBbDCCAWigAwIBBaEOGwxURVNUUkVMTS5DT02iJzAloAMC AQGhHjAcGwNETlMbFTcwbWFzdGVyLnRlc3RyZWxtLmNvbaOCASYwggEi oAMCARKhAwIBAqKCARQEggEQzcPnhE8mVNZEUZ5xlt/gJTXITCpjkM+S 6RFUrzoeunEo6EyghjHkzlTfobNwjiyuuXm6R4wr0rYlfeiqn6H3/Ivr hYI2BvUFWrrW8cBxvj4FcJrDU4ytuaeftqa8YVjq3dc8A99TWQVlHwtX wVXdJa7hP2GMT7nsH47MhIViDUOW/CjDnTvPeyM0O94o1EqptU0I5mbE oABb+SUVuaKksJdHX6idB2MKp98uZ2ls4p+AvC/40FmMVyiAuZUJDbZ1 jaKxAHeyEpvI5f+/1oZztfApbZZynRQWxGioYVilE02LW6MeFOAqkiKr ABcO6Aip3MWDw8v9OSBn6dxzENJSGLnCsM1daZ4Y7TsuHhofCTakgeAw gd2gAwIBEqKB1QSB0vB/P8QLYf83oeqENUk2YHleVHIVE1KrQ+g+2mao xTGv1rvKrG9oGTKieuiAos5cmATvW1H3bzoTFHS6XG0vOnZs3Ti1yZbq hlvjUtzk1Bd4hWYjzqmalAnV/kpRlC7Pk8OE6xJLihACNJLm8jFeDSTt /Z1GW50/dm6jhjY744bpMj0Ie/GbmXvGOPMnghYYgcCeuW9THwVUqzj/ ozd5PjvGdaRQ4W615szI8B3B+pDclrI/DtRkX6t7qHuwIKovPHMUwqYz iRIJyEbcYFDiIlg9uA== 0

recvmsg reply from GSS-TSIG query
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id:  58456
;; flags: qr ra; QUESTION: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;2624493634.sig-70master.testrelm.com. ANY TKEY

;; ANSWER SECTION:
2624493634.sig-70master.testrelm.com. 0	ANY TKEY gss-tsig. 1390313831 1390317431 3 NOERROR 156 YIGZBgkqhkiG9xIBAgICAG+BiTCBhqADAgEFoQMCAQ+iejB4oAMCARKi cQRvfzKND0CB5oRT9ib9K10A6o+9Xr5NEBFuYbPPZzNfK7984kn6nj/P 7KLUtqwN6Mn09UMOJ2azd+uehW3eS4/U/5SxOA63VjhkWn6/V94Dblvk cz6s1+waKsPUg5mxmFskd6iz2MNFfRkqZ9J1hiFV 0

Sending update to 10.18.57.215#53
Outgoing update query:
;; ->>HEADER<<- opcode: UPDATE, status: NOERROR, id:   3143
;; flags:; ZONE: 1, PREREQ: 0, UPDATE: 1, ADDITIONAL: 1
;; UPDATE SECTION:
test.example.com.	0	NONE	A	1.2.3.4

;; TSIG PSEUDOSECTION:
2624493634.sig-70master.testrelm.com. 0	ANY TSIG gss-tsig. 1390313831 300 28 BAQE//////8AAAAAK8jvItMJYqplk3YdBpnjGw== 3143 NOERROR 0 


Reply from update query:
;; ->>HEADER<<- opcode: UPDATE, status: REFUSED, id:   3143
;; flags: qr ra; ZONE: 1, PREREQ: 0, UPDATE: 0, ADDITIONAL: 1
;; ZONE SECTION:
;example.com.			IN	SOA

;; TSIG PSEUDOSECTION:
2624493634.sig-70master.testrelm.com. 0	ANY TSIG gss-tsig. 1390313831 300 28 BAQF//////8AAAAAD2rPc0YMT/GjtdLMYR0Gpg== 3143 NOERROR 0 


in /var/log/messages:
Jan 21 09:17:11 70master named[28475]: client 10.18.57.215#38837/key host/test.example.com\@TESTRELM.COM: updating zone 'example.com/IN': update failed: rejected by secure update (REFUSED)
Comment 8 Petr Spacek 2014-01-21 14:59:07 UTC 
(In reply to Xiyang Dong from comment #7)
> [root@70master ~]# ipa dnszone-mod $testZone --update-policy='grant
> $testRelm krb5-self * A; grant $testRelm krb5-self * AAAA; grant $testRelm
> krb5-self * SSHFP;'
>   Zone name: example.com
...
>   BIND update policy: grant $testRelm krb5-self * A; grant $testRelm
> krb5-self *
>                       AAAA; grant $testRelm krb5-self * SSHFP;

Note that $testRelm was not expanded so BIND can't possibly match client's realm to string "$testRelm".

Rest of the configuration seems fine, please retry the test with expanded $testRelm variable.

Have a nice day!
Comment 9 Xiyang Dong 2014-01-21 15:47:27 UTC 
Verified on :
ipa-server-3.3.3-6.el7.x86_64
bind-dyndb-ldap-3.5-2.el7.x86_64

[root@70master ~]# kinit admin
Password for admin: 
[root@70master ~]# testZone=example.com
[root@70master ~]# ipa dnszone-add $testZone --admin-email=hostmaster.$testZone --name-server=ns --ip-address=127.0.0.1
  Zone name: example.com
  Authoritative nameserver: ns
  Administrator e-mail address: hostmaster.example.com.
  SOA serial: 1390313346
  SOA refresh: 3600
  SOA retry: 900
  SOA expire: 1209600
  SOA minimum: 3600
  BIND update policy: grant TESTRELM.COM krb5-self * A; grant TESTRELM.COM krb5-self
                      * AAAA; grant TESTRELM.COM krb5-self * SSHFP;
  Active zone: TRUE
  Dynamic update: FALSE
  Allow query: any;
  Allow transfer: none;
[root@70master ~]# testReverseZone=3.2.1.in-addr.arpa.
[root@70master ~]# ipa dnszone-add $testReverseZone --admin-email=hostmaster.$testReverseZone --name-server=ns.$testZone.
  Zone name: 3.2.1.in-addr.arpa.
  Authoritative nameserver: ns.example.com.
  Administrator e-mail address: hostmaster.3.2.1.in-addr.arpa.
  SOA serial: 1390313374
  SOA refresh: 3600
  SOA retry: 900
  SOA expire: 1209600
  SOA minimum: 3600
  BIND update policy: grant TESTRELM.COM krb5-subdomain 3.2.1.in-addr.arpa. PTR;
  Active zone: TRUE
  Dynamic update: FALSE
  Allow query: any;
  Allow transfer: none;
 [root@70master ~]# ipa dnsrecord-add $testZone test --a-rec=1.2.3.4 --a-create-reverse
  Record name: test
  A record: 1.2.3.4
[root@70master ~]# ipa dnsrecord-add $testReverseZone 4 --txt-rec=text
  Record name: 4
  PTR record: test.example.com.
  TXT record: text

[root@70master ~]# ipa dnszone-mod $testZone --dynamic-update=TRUE
  Zone name: example.com
  Authoritative nameserver: ns
  Administrator e-mail address: hostmaster.example.com.
  SOA serial: 1390313485
  SOA refresh: 3600
  SOA retry: 900
  SOA expire: 1209600
  SOA minimum: 3600
  Active zone: TRUE
  Dynamic update: TRUE
  Allow query: any;
  Allow transfer: none;
[root@70master ~]# testRealm=TESTRELM.COM
[root@70master ~]# ipa dnszone-mod $testZone --update-policy="grant $testRealm krb5-self * A; grant $testRealm krb5-self * AAAA; grant $testRealm krb5-self * SSHFP;"
  Zone name: example.com
  Authoritative nameserver: ns
  Administrator e-mail address: hostmaster.example.com.
  SOA serial: 1390313485
  SOA refresh: 3600
  SOA retry: 900
  SOA expire: 1209600
  SOA minimum: 3600
  BIND update policy: grant TESTRELM.COM krb5-self * A; grant TESTRELM.COM krb5-self *
                      AAAA; grant TESTRELM.COM krb5-self * SSHFP;
  Active zone: TRUE
  Allow query: any;
  Allow transfer: none;
[root@70master ~]# ipa dnszone-mod $testZone --allow-sync-ptr=TRUE
  Zone name: example.com
  Authoritative nameserver: ns
  Administrator e-mail address: hostmaster.example.com.
  SOA serial: 1390313485
  SOA refresh: 3600
  SOA retry: 900
  SOA expire: 1209600
  SOA minimum: 3600
  Active zone: TRUE
  Allow query: any;
  Allow transfer: none;
  Allow PTR sync: TRUE
[root@70master ~]# ipa dnszone-mod $testReverseZone --dynamic-update=TRUE
  Zone name: 3.2.1.in-addr.arpa.
  Authoritative nameserver: ns.example.com.
  Administrator e-mail address: hostmaster.3.2.1.in-addr.arpa.
  SOA serial: 1390313492
  SOA refresh: 3600
  SOA retry: 900
  SOA expire: 1209600
  SOA minimum: 3600
  Active zone: TRUE
  Dynamic update: TRUE
  Allow query: any;
  Allow transfer: none;

 [root@70master ~]# ipa host-add test.$testZone
-----------------------------
Added host "test.example.com"
-----------------------------
  Host name: test.example.com
  Principal name: host/test.example.com
  Password: False
  Keytab: False
  Managed by: test.example.com
[root@70master ~]# TmpDir=/tmp
[root@70master ~]# MASTER=`hostname`
[root@70master ~]# ipa-getkeytab -s $MASTER -p host/test.$testZone@$testRelm -k $TmpDir/bz958140.keytab
Keytab successfully retrieved and stored in: /tmp/bz958140.keytab

[root@70master ~]#         cat > $TmpDir/nsupdate.txt << EOF
> debug
> update delete test.$testZone IN A 1.2.3.4
> send
> EOF
[root@70master ~]# 
[root@70master ~]# kinit -k -t $TmpDir/bz958140.keytab host/test.$testZone
[root@70master ~]# nsupdate -g $TmpDir/nsupdate.txt
Reply from SOA query:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id:  39788
;; flags: qr aa rd ra; QUESTION: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
;; QUESTION SECTION:
;test.example.com.		IN	SOA

;; AUTHORITY SECTION:
example.com.		3600	IN	SOA	70master.testrelm.com. hostmaster.example.com. 1390317899 3600 900 1209600 3600

Found zone name: example.com
The master is: 70master.testrelm.com
start_gssrequest
Found realm from ticket: TESTRELM.COM
send_gssrequest
Outgoing update query:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id:  31724
;; flags:; QUESTION: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1
;; QUESTION SECTION:
;355206154.sig-70master.testrelm.com. ANY TKEY

;; ADDITIONAL SECTION:
355206154.sig-70master.testrelm.com. 0 ANY TKEY	gss-tsig. 1390318478 1390318478 3 NOERROR 643 YIICfwYJKoZIhvcSAQICAQBuggJuMIICaqADAgEFoQMCAQ6iBwMFACAA AACjggFwYYIBbDCCAWigAwIBBaEOGwxURVNUUkVMTS5DT02iJzAloAMC AQGhHjAcGwNETlMbFTcwbWFzdGVyLnRlc3RyZWxtLmNvbaOCASYwggEi oAMCARKhAwIBAqKCARQEggEQXdTDTYvv7mulLQ4IBkKWPvwQAzIs/Myn R5iatrlIqN11JHs3VLLHTHUQd8M8Sb9V2TRR5KAXUeVD7nDwW1YAzTly rUEQWMFJzTO6pdzF3h96EWaKPafXZdH7IXhIgC5egr81eBYMRqpUH0U6 M4H6tg4zIFB5NxSrJ5TidihN95m+urToj+jXrcAhgmn2I35e5UkVxwrH tqBLYzjypW7DwtGyXrFZB3YT2FhFjHGSrTegEzW/fOdTuiwB1n3GmvJO bUXSk7OOqf7DdNSGatKHizmMb5Me3P80Qs8Zn0Y9S2DTJF9JrMdeBW4V G+qj2or3k1sPgYdaPNKXlNIoOU52HNwKtHKiOpHrZUtgZuBQtXqkgeAw gd2gAwIBEqKB1QSB0vIhiVCR8aYjHRWZqrJkPFkkP6u5jzcR8lOZ2Ac5 Np2gi0aex57oF1e+cCcSRJGUCn+XESlU5Y53bg2LKRUSItEQLQBuLI9b 3nLXwwdK0FUt6InJh/e20TFL2V8s4l+zuy9CxsgGupX2dQYRQAkjNzJZ pwth6IGytJaOIMSxGa+HCUF9q65Btibxzx4L7/oooHYKcrPXSnRiW05w RYAb9sFxqdH0n2TQrtQPP3hD0nDQ+zXP5skBCcoZA8xLoy0i/22lmPIS ODUwetJ63KIn0JFQnw== 0

recvmsg reply from GSS-TSIG query
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id:  31724
;; flags: qr ra; QUESTION: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;355206154.sig-70master.testrelm.com. ANY TKEY

;; ANSWER SECTION:
355206154.sig-70master.testrelm.com. 0 ANY TKEY	gss-tsig. 1390318478 1390322078 3 NOERROR 156 YIGZBgkqhkiG9xIBAgICAG+BiTCBhqADAgEFoQMCAQ+iejB4oAMCARKi cQRveDxq7D8QZV56dSegp0Nxv3lIYfm2hUJ2rHbgOAo7r5OPlGtCE+PD nd8Y25bl+60evNPS25swKd8Wcqwfl4Aq/6tEi8n8UIDzMAMOLU0OyWq3 35JAHKZ1P8pjCKb0vliO33qoWM8kLFVXYb1TMR7R 0

Sending update to 10.18.57.215#53
Outgoing update query:
;; ->>HEADER<<- opcode: UPDATE, status: NOERROR, id:  34291
;; flags:; ZONE: 1, PREREQ: 0, UPDATE: 1, ADDITIONAL: 1
;; UPDATE SECTION:
test.example.com.	0	NONE	A	1.2.3.4

;; TSIG PSEUDOSECTION:
355206154.sig-70master.testrelm.com. 0 ANY TSIG	gss-tsig. 1390318478 300 28 BAQE//////8AAAAALePiKrb9/WJLq3X2PPHtDg== 34291 NOERROR 0 


Reply from update query:
;; ->>HEADER<<- opcode: UPDATE, status: NOERROR, id:  34291
;; flags: qr ra; ZONE: 1, PREREQ: 0, UPDATE: 0, ADDITIONAL: 1
;; ZONE SECTION:
;example.com.			IN	SOA

;; TSIG PSEUDOSECTION:
355206154.sig-70master.testrelm.com. 0 ANY TSIG	gss-tsig. 1390318478 300 28 BAQF//////8AAAAALjayzxxVVlemheMlUdZcrw== 34291 NOERROR 0 

[root@70master ~]# ipa dnsrecord-find $testZone 
  Record name: @
  NS record: ns

  Record name: _kerberos
  TXT record: TESTRELM.COM

  Record name: ns
  A record: 127.0.0.1
----------------------------
Number of entries returned 3
----------------------------

----------------------------
[root@70master ~]# ipa dnsrecord-find $testReverseZone 4
  Record name: 4
  TXT record: text
----------------------------
Number of entries returned 1
----------------------------
Comment 11 Ludek Smid 2014-06-13 10:32:29 UTC 
This request was resolved in Red Hat Enterprise Linux 7.0.

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