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The nmbd logs of a linux samba4 domain member server are filled with lines like:

query_name_response: Multiple (2) responses received for a query on subnet 192.168.1.54 for name ADOMAIN<1d>.
This response was from IP 192.168.1.19, reporting an IP address of 192.168.1.19.

where:

  • 192.168.1.54 is the IP of the member server
  • 192.168.1.19 is the IP of the PDC
  • ADOMAIN is a SAMBA NT-style domain

Those lines appears every 5 minutes.

What is going on?

Random steps taken:

  • rm /var/cache/samba/browse.dat;
  • double check interfaces broadcast configuration (it is correct);
  • systemctl restart nmbd (a evergreen classic).
  • Did you ever get this sorted out? I am having the same issue on a couple FreeBSD VMs, but the answer below doesn't seem to apply to my network environment... – AveryFreeman May 6 '18 at 12:28
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It could be because of a host in the same physical network which have two interfaces. The broadcast query coming in is replied to both of them by your nmbd. Please see this 17 years old answer at https://thr3ads.net/samba/2000/08/1675707-query_name_response-Multiple-responses-received

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