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Samba generates regular "Multiple (2) responses received for a query on subnet"

ODeskJul 10 2017 — edited Jul 14 2017

Hi All

I've just patched my Samba service on Solaris 10 (SPARC) using the new patch 119757-40 which upgrades to Samba 4.4.14

Everything seems fine, but now notice a lot of messages to syslog for the nmbd process.  These are on the *.err priority which i am normally logging to file.

Jul 11 09:49:07 myhost nmbd[3206]: [ID 702911 daemon.error]   query_name_response: Multiple (2) responses received for a query on subnet 192.168.1.3 for name IMAGEADM<1d>.

Jul 11 09:49:07 myhost nmbd[3206]: [ID 702911 daemon.error]   This response was from IP 192.168.1.12, reporting an IP address of 192.168.1.12.

These messages begin to repeat every 5 minutes after an election for the workgroup name, in the logs for the losing participants of the election.  I can reproduce it on different workgroups on different subnets too.

I can throw these messages out by increasing the priority on the nmbd facility in syslog.conf but the message seems to be a bug of some sort to me.  I did some research and the message suggests there are two machines with the same name on the network, but doing nmblookup -M IMAGEADM returns only one result, not two.  Doing a snoop also seems to show the master browser is sending back the same response twice to the one request.  I've also tried the tricks of configuring SAMBA to use only one interface but it makes no difference for me.

So I'm wondering if anyone can reproduce this problem on Solaris 10 (SPARC) with this patch 119757-40.  I'm happy to ignore it and perhaps it is something about my environment but curiosity got the better of me

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Added on Jul 10 2017
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