BIND 9.16 incoming TCP connection errors

Anand Buddhdev anandb at
Thu Jun 18 09:49:14 UTC 2020

On 16/06/2020 20:17, Tony Finch wrote:

Hi Tony,

>> 16-Jun-2020 15:21:58.815 general: Accepting TCP connection failed: socket is not connected
>> What does this log message mean?
> I think this error comes from getpeername() and it can occur if the
> connection is closed between accept() and getpeername(), which I wouldn't
> expect to happen all that frequently...

Thank you for this. I wasn't seeing these messages under 9.14. They only 
appear on servers upgraded to 9.16.

I'd appreciate it if one of the developers of BIND could shed some light 
on where this message comes from, so I can investigate what's going on.


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