Maintained by: NLnet Labs

error: outgoing tcp: bind: Address already in use

W.C.A. Wijngaards
Mon Jul 24 12:57:38 CEST 2017


Hi Nick,

On 21/07/17 05:29, Nick Urbanik via Unbound-users wrote:
> Dear Folks,
> 
> On 06/07/17 18:13 +1000, Nick Urbanik via Unbound-users wrote:
>> A DNS server running unbound 1.6.3 has these messages; any suggestions
>> on what is happening?
>>
>> error: serviced_tcp_initiate: failed to send tcp query
>> error: outgoing tcp: bind: Address already in use
> 
> Could our setting of
> max-udp-size: 3072
> be too low?  Any guidelines for tuning this?

I think unbound 1.6.4 port reuse option may solve it for you as Quirin
suggests.  The max-udp-size is not important for this error you are
seeing in logs.

Best regards, Wouter

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