[Samba] Samba 4.6.8 (Non packaged version) dns update issue

[Rowland Penny]

On Tue, 24 Oct 2017 12:05:14 +0200
Ian Coetzee via samba <samba at lists.samba.org> wrote:

> Hi Guys,
> 
> I am running into an issue here.
> 
> We have 2 domain controllers using BIND_DLZ as dns backend
> 
> OS: CentOS 6.9
> Samba version: Samba 4.6.8 self compiled on another host and
> distributed internally as RPM packages
> Bind version: BIND 9.8.2rc1-RedHat-9.8.2-0.62.rc1.el6_9.4
> 
> Almost daily I need to restart the named process (service named
> restart) to make dynamic dns updates from the member servers (mix of
> linux and windows) and desktops (windows) working.
> 
> Note that I have changed some of the hostnames for security sake
> (paranoia strikes again)
> 
> Before the restart I get:
> [root at archive1 ~]# net ads dns register -Uianc
> Enter ianc's password:
> DNS Update for archive1.[DOM_FQDN] failed: ERROR_DNS_UPDATE_FAILED
> DNS update failed!
> [root at archive1 ~]# net ads info
> LDAP server: 10.10.10.4
> LDAP server name: dc2.[DOM_FQDN]
> Realm: [DOM_FQDN]
> Bind Path: []
> LDAP port: 389
> Server time: Tue, 24 Oct 2017 08:14:49 UTC
> KDC server: 10.10.10.4
> Server time offset: 0
> Last machine account password change: Tue, 24 Oct 2017 07:24:11 UTC
> [root at archive1 ~]# net -V
> Version 4.6.2
> [root at archive1 ~]# cat /etc/redhat-release
> CentOS Linux release 7.4.1708 (Core)
> 
> I then restart bind on the relevant DC
> 10:14:59 [ianc at dc2 ~]$ sudo service named restart
> [sudo] password for ianc:
> Stopping named: .                                          [  OK  ]
> Starting named:                                            [  OK  ]
> 
> After the restart
> [root at archive1 ~]# net ads dns register -Uianc
> Enter ianc's password:
> Successfully registered hostname with DNS
> 
> Has anybody else experienced an issue like this?
> 
> I haven't found anything in the logs pointing me where to look.
> 
> I am trying the samba list first. I will cross post to bind list if we
> are out of ideas here.
> 
> Kind regards
> 

Will you please post your Bind conf files.
Also the smb.conf from the DCs

Rowland