unbound listening sporadically on 0.0.0.0 high ports when configured for 127.0.0.1 ?
paul at nohats.ca
Fri Jun 3 01:13:39 CEST 2016
On Fri, 3 Jun 2016, Daisuke HIGASHI wrote:
> Subject: Re: unbound listening sporadically on 0.0.0.0 high ports when
> configured for 127.0.0.1 ?
> My guess is: UDP sockets for outgoing query
> from Unbound to authoritative servers.
> I also see these "listening" UDP sockets at my laptop running unbound
> when resolver is under load. And I see no them when no load.
That was my first thought too, but these entries do not have a
destination IP or port, so it "appears" that these sockets are
listening. Still it could be that perhaps these are sockets
that are starting up for use or something?
> Daisuke HIGASHI
> 2016-06-03 0:34 GMT+09:00 Paul Wouters via Unbound-users
> <unbound-users at unbound.net>:
>> See https://bugzilla.redhat.com/show_bug.cgi?id=1342105
>> from time to time "netstat -l" shows unbound listening on some
>> high-ports not
>> bound to 127.0.0.1 - that makes no sense when the service is
>> configured for
>> 127.0.0.1 only as a local resolver on a inbound mailfilter
>> udp 0 0 0.0.0.0:42663 0.0.0.0:*
>> udp 0 0 127.0.0.1:53 0.0.0.0:*
>> udp 0 0 0.0.0.0:12387 0.0.0.0:*
>> interface: 127.0.0.1
>> access-control: 127.0.0.0/8 allow
>> interface-automatic: no
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