[rabbitmq-discuss] Identifying TCP Listeners.

[Adam Tauno Williams]

On Wed, 2012-04-11 at 13:32 -0400, Adam Tauno Williams wrote: 
> On Wed, 2012-04-11 at 13:15 -0400, Adam Tauno Williams wrote:
> > On Wed, 2012-04-11 at 11:59 +0100, Michael Bridgen wrote:
> > > On 04/11/2012 11:52 AM, Adam Tauno Williams wrote:
> > > > On Wed, 2012-04-11 at 06:49 -0400, Adam Tauno Williams wrote:
> > > >> How can I determine what 'service' is active on a port via RabbitMQ?
> > > >> I've figured out all but TCP/49974
> > > >> 0 0.0.0.0:4369  epmd [Erlang Port Mapper]
> > > >> 0.0.0.0:49974   beam.smp [????]
> > > >
> > > > Actually, this port seems to 'float', as it is different every time I
> > > > restart Rabbit.
> > > I expect it's Erlang distribution -- i.e., it's the port the node 
> > > advertises in epmd so other nodes can communicate with it.
> > 
> > Ah, that sound's reasonable.
> > From netstat:
> > tcp   0   0 0.0.0.0:50000  0.0.0.0:*    LISTEN      1434/beam.smp       
> > tcp   0   0 0.0.0.0:4369   0.0.0.0:*    LISTEN      1296/epmd           
> > tcp   0   0 0.0.0.0:55672  0.0.0.0:*    LISTEN      1434/beam.smp       
> > tcp   0   0 127.0.0.1:5672 0.0.0.0:*    LISTEN      1434/beam.smp 
> > Are there any configuration parameters to control how that port is
> > bound, selected, or published?
> With - 
> rabbitmq-server-2.8.1-1.suse.noarch
> erlang-R15B-2.1.i586
>  - I can specify -
> {
>   kernel, [ {inet_dist_use_interface, [ {"127.0.0.1"} ] } ]
>  }
>  - /etc/rabbitmq/rabbitmq.config  and the server still starts, but it
> has no effect on how the epmd or beam.smp bind.

I was finally able to achieve getting my test instance of RabbitMQ and
all its components to only listen on the localhost interface.  It
requires are combination of both environment variables and configuration
file [ugh].

<http://www.whitemiceconsulting.com/2012/09/idjits-guide-to-installing-rabbitmq-on.html>
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