[Samba] dns_delete_tombstones error messages

[Norbert Hanke]

Hi all,

Since quite some time I see error messages like this in sysslog, on all
my Samba Domain Controllers:

Mar  6 12:40:41 dc1 daemon.err samba[448205]: [2025/03/06
12:40:41.899326,  0]
source4/dsdb/kcc/scavenge_dns_records.c:470(dns_delete_tombstones)
Mar  6 12:40:41 dc1 daemon.err samba[448205]: dns_delete_tombstones: The
tombstoned dns node
DC=E7450,DC=ad.mydomain.tld,CN=MicrosoftDNS,DC=DomainDnsZones,DC=ad,DC=mydomain,DC=tld
has 611 dns records, expected one.

How can I get rid of these 610 extra tombstones?

That notebook computer E7450 over a long time had both a wifi and at
times a wired connection to the same network active, where the dhcp
server's dyndns script tried to register and unregister both in DNS.
That appears to have led to some confusion...

There is no need to address the root cause: that PC is no more in use,
and I configured all notbook computers to disable wifi when they connect
to ethernet.

Thanks & regards,
Norbert