Maintained by: NLnet Labs

unbound listening sporadically on 0.0.0.0 high ports when configured for 127.0.0.1 ?

Daisuke HIGASHI
Thu Jun 2 18:31:24 CEST 2016


Hi,

   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.

--
 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:*
>         563/unbound
>         udp        0      0 127.0.0.1:53            0.0.0.0:*
>         563/unbound
>         udp        0      0 0.0.0.0:12387           0.0.0.0:*
>         563/unbound
>
>         unbound.conf
>          interface: 127.0.0.1
>          access-control: 127.0.0.0/8 allow
>          interface-automatic: no
>
> Paul