Bug 41406 – S4-Connector tracebacks due to new _ldap._tcp.DomainDnsZones records.

Bug 41406 - S4-Connector tracebacks due to new _ldap._tcp.DomainDnsZones records.


Summary:	S4-Connector tracebacks due to new _ldap._tcp.DomainDnsZones records.

Status:	CLOSED FIXED

Product:	UCS
Classification:	Unclassified
Component:	Samba4
Version:	UCS 3.2
Hardware:	Other Linux

Importance:	P5 normal (vote)
Target Milestone:	UCS 3.2-8-errata
Assigned To:	Arvid Requate
QA Contact:	Stefan Gohmann

URL:
Keywords:

Depends on:	36101
Blocks:	41488
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Reported:	2016-06-01 15:13 CEST by Arvid Requate
Modified:	2016-09-29 17:30 CEST (History)
CC List:	3 users (show)

See Also:
What kind of report is it?:	Bug Report
What type of bug is this?:	3: Simply Wrong: The implementation doesn't match the docu
Who will be affected by this bug?:	2: Will only affect a few installed domains
How will those affected feel about the bug?:	2: A Pain – users won’t like this once they notice it
User Pain:	0.069
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School Customer affected?:
ISV affected?:
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Flags:	requate: Patch_Available+

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Description Arvid Requate

2016-06-01 15:13:38 CEST

The patch of Bug #36101 needs to be backported to UCS 3.2 as well, due to the errata3.2-8 update to Samba 4.3.7. For UCS 3.3 this has already been done
(see Bug #40698 Comment 8).


+++ This bug was initially created as a clone of Bug #36101 +++

Samba 4.2 creates additional SRV records in DNS, which are not accepted by the UDM syntax class ipProtocolSRV. This causes rejects in the S4-Connector:
==============================================================================
root@master50:~# univention-s4connector-list-rejected                                      

UCS rejected


S4 rejected

    1:    S4 DN: DC=_ldap._tcp.Default-First-Site-Name._sites.ForestDnsZones,DC=ar40i1.qa,CN=MicrosoftDNS,CN=System,DC=ar40i1,DC=qa
         UCS DN: <not found>
    2:    S4 DN: DC=_ldap._tcp.ForestDnsZones,DC=ar40i1.qa,CN=MicrosoftDNS,CN=System,DC=ar40i1,DC=qa
         UCS DN: <not found>
    3:    S4 DN: DC=_ldap._tcp.DomainDnsZones,DC=ar40i1.qa,CN=MicrosoftDNS,CN=System,DC=ar40i1,DC=qa
         UCS DN: <not found>
    4:    S4 DN: DC=_ldap._tcp.Default-First-Site-Name._sites.DomainDnsZones,DC=ar40i1.qa,CN=MicrosoftDNS,CN=System,DC=ar40i1,DC=qa
         UCS DN: <not found>
==============================================================================


Can't find the MS docs where these are specified but apparently that's what Active Directroy creates. Note the "DomainDnsZones" and "ForestDnsZones" parts in the DNS names (these are not to be confused with the equally named LDAP partitions in the Samba4/AD Directory Service).



+++ This bug was initially created as a clone of Bug #35319 +++

Comment 1 Arvid Requate

2016-06-07 12:46:52 CEST

Fixed by backporting univention-s4-connector commit r55263 from UCS 4.0:
 * Use udm.handlers.src_record.unmapName (Bug #36101)

Advisory: univention-s4-connector.yaml

Test Setup: Install a plain UCS 3.2, update to 3.2-8 with latest errata, then install univention-s4-connector and run univention-run-join-scripts. That should reproduce the rejects. Installing the updated uinvention-s4-connector from apt should resolve the rejects.

Comment 2 Stefan Gohmann

2016-06-08 07:28:07 CEST

Code review: OK

Tests: I was unable to reproduce the original issue. Anyway, the change makes sense.

YAML: OK, minor adjustment r69934

Comment 3 Janek Walkenhorst

2016-06-08 14:01:18 CEST

<http://errata.software-univention.de/ucs/3.2/433.html>