[Samba] DNS PTR update fails if IP is reused by another client

[Rowland Penny]

On Sat, 2021-12-11 at 13:02 +0000, spindles seven wrote:
> On 11 December 2021 12:17 Rowland Penny wrote:
> > I personally think the 'tombstone' is a bit of a red herring. If
> > you
> > re-install a machine with the same name, ip etc, even if it looks
> > like
> > the same machine to you, to Windows it is a different machine and
> > that
> > new machine will not be able to alter any records for the old
> > machine.
> > 
> > >    If so is there a workaround?
> > 
> > You could try deleting the old records and let your new machine
> > create
> > new ones.
> > 
> > Rowland
> > 
> Thanks Rowland.    Yes,  I tried that, the A record in the forward
> zone and the PTR record in the reverse zone for the old machine
> (LION-X99) was deleted, but still getting these errors for the new
> machine (LION).   Or did you mean deleting the tombstoned records?
> 
> BTW it created the A record in the forward zone automatically when I
> joined the new machine to the domain.   It's just the PTR record
> that's not being allowed to be created automatically.


There is something going very wrong here. When you delete a dns object
in AD, it isn't really deleted. It has a few attributes removed and is
renamed and then moved to 'CN=Deleted
Objects,DC=DomainDnsZones,DC=samdom,DC=example,DC=com'

This means that the reverse record shouldn't be there when Windows
tries to create/alter the record.

Rowland