[Samba] Internal DNS migrate to Bind9_DLZ

[Rowland Penny]

On Thu, 1 Nov 2018 07:21:57 +0200
Eben Victor <eben.victor at gmail.com> wrote:

> I've been been trying to investigate this for sometime now, hence I
> came to the experts :)
> 
> I have rejoined all my DC's with new names, see below.
> ;; ANSWER SECTION:
> <domain>.corp.    3600    IN    NS    psad101zatcrh.<domain>.corp. ->
> New rebuild, new hostname, RHEL6 to RHEL7 upgrade
> <domain>.corp.    3600    IN    NS    prdc001zafsrh.<domain>.corp. ->
> New rebuild, new hostname, RHEL6 to RHEL7 upgrade
> <domain>.corp.    3600    IN    NS    prdc003zacprh.<domain>.corp. ->
> New rebuild, new hostname, RHEL6 to RHEL7 upgrade
> <domain>.corp.    3600    IN    NS    zatprdc001.<domain>.corp. -> Old
> demoted DC, old hostname, cannot be found in AD
> <domain>.corp.    3600    IN    NS    prdc002zacprh.<domain>.corp. ->
> New rebuild, new hostname, RHEL6 to RHEL7 upgrade
> <domain>.corp.    3600    IN    NS    psad102zadprh.<domain>.corp. ->
> New rebuild, new hostname, RHEL6 to RHEL7 upgrade
> <domain>.corp.    3600    IN    NS    prdc001zatcrh.<domain>.corp. ->
> New rebuild, new hostname, RHEL6 to RHEL7 upgrade
> <domain>.corp.    3600    IN    NS    prdc001zacprh.<domain>.corp. ->
> New rebuild, new hostname, RHEL6 to RHEL7 upgrade
> 

Just a thought ;-)

> Here is the "/etc/resolv.conf"
> I have tried different changes in the /etc/resolv.conf as well
> $ cat /etc/resolv.conf
> # Generated by NetworkManager
> search <domain>.corp <domain2>.corp <domain3>.corp <domain4>.net
> <domain5>. co.za <domain6>.co.za
> nameserver <IP of DC 2>
> nameserver <IP of DC 1>
> nameserver <IP of DC 3>
> # NOTE: the libc resolver may not support more than 3 nameservers.
> # The nameservers listed below may not be recognized.
> nameserver <IP of DC 4>
> nameserver <IP of DC 5>
> nameserver <IP of DC 6>
> 

I would stop network manager having anything to do with /etc/resolv.conf
and then make /etc/resolv.conf look like this:

search <domain>.corp
nameserver <IP of the DC>

Rowland