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[Stéphane Berthelot <sberthelot@xxxxxxxxxx>]

Public bug reported:

I am encountering the exact same problem as described in this bug report.
A patch seems available and should fix the problem.

https://forge.univention.org/bugzilla/show_bug.cgi?id=39139

When reloading bind while I have samba setup as a PDC and using BIND9_DLZ module, the zone is deleted.
Restarting named makes it work again but is not usable seems many scripts (logrotate) use reload by default.

Issuing a simple "rndc zonestatus ad.zone" just after restart is OK, and after reload I get a "rndc: 'zonestatus' failed: not found
no matching zone 'ad.zone' in any view"

This may cause a lot of trouble for dynamic updates on somewhat complex
setups with Samba as a PDC (samba internal DNS server is really
limited...)

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: samba 2:4.3.11+dfsg-0ubuntu0.16.04.3
ProcVersionSignature: Ubuntu 4.8.0-39.42~16.04.1-generic 4.8.17
Uname: Linux 4.8.0-39-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.5
Architecture: amd64
Date: Mon Mar  6 19:00:47 2017
InstallationDate: Installed on 2017-02-24 (10 days ago)
InstallationMedia: Ubuntu-Server 16.04.2 LTS "Xenial Xerus" - Release amd64 (20170215.8)
NmbdLog:
 
OtherFailedConnect: Yes
SambaServerRegression: No
SmbConfIncluded: Yes
SmbLog:
 
SourcePackage: samba
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: samba (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug bind9 dlz samba xenial

** Patch added: "dlz_bind9_rndc_reload.patch (see univention bug report credits for it)"
   https://bugs.launchpad.net/bugs/1670450/+attachment/4832476/+files/dlz_bind9_rndc_reload.patch

** Attachment removed: "JournalErrors.txt"
   https://bugs.launchpad.net/ubuntu/+source/samba/+bug/1670450/+attachment/4832478/+files/JournalErrors.txt

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https://bugs.launchpad.net/bugs/1670450

Title:
  samba4 bind dlz module stops working on rndc reload

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