IPv4 control socket binding failure with BIND 9.9.4-P1 on RHEL6

Jay Ford jay-ford at uiowa.edu
Thu Dec 5 19:14:58 UTC 2013


On Thu, 5 Dec 2013, Shumon Huque wrote:
> On 12/5/13 11:49 AM, Jay Ford wrote:
>> I'm testing BIND 9.9.4-P1 on a RHEL6 system & am getting this log message:
>>
>>     /etc/named.conf:56: couldn't add command channel 127.0.0.1#953:
>> address in use

> I'm going to take a guess: you might have portreserve running
> that is reserving the control channel port, or v4 only because
> they forgot about v6. We usually turn it off.

That was indeed the problem & killing portreserve lets things work correctly
now.  Thanks much!

________________________________________________________________________
Jay Ford, Network Engineering Group, Information Technology Services
University of Iowa, Iowa City, IA 52242
email: jay-ford at uiowa.edu, phone: 319-335-5555


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