asterisk users - Jul 2011 - Multiple Asterisk Sessions on same machine

Hello,

We would like Asterisk to listen on port 5060 and on an additional port.

On 07/19/2011 01:07 PM, Michael wrote:
> We would like Asterisk to listen on port 5060 and on an additional port.
> From what we read online, it's not really possible, so is it possible
to
> install a separate instance of Asterisk on the same machine (without
> using Vmware or such) and set the 2nd instance to listen on another port?
It would be much easier to install a SIP proxy to listen on the second 
port and forward requests over to Asterisk on the standard port.

-- 
Kevin P. Fleming
Digium, Inc. | Director of Software Technologies
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445 Jan Davis Drive NW - Huntsville, AL 35806 - USA
Check us out at www.digium.com & www.asterisk.org

On 07/19/2011 02:07 PM, Michael wrote:
> We would like Asterisk to listen on port 5060 and on an additional
> port.
Out of sheer curiosity, what is the motive?
> From what we read online, it's not really possible, so is it
> possible to install a separate instance of Asterisk on the same
> machine (without using Vmware or such) and set the 2nd instance to
> listen on another port?
It is possible, in principle, but definitely not convenient or easy to 
administer.  If you compile from source, you can probably quite far 
using the '--prefix' option to the autoconf 'configure' script,
or
various more specific prefix options it may offer, to accomplish this 
end.  You'd have to make sure all the data subdirectories in /var end 
up going in a different place, etc., and perhaps modify the init 
scripts to put lock files in different places.

It's possible, but it's not easy.  Asterisk's internal config file 
structure, i.e. in the sample configs, definitely assumes a single, 
global instance.

Have you thought about chroot as a possible solution to this?

-- 
Alex Balashov - Principal
Evariste Systems LLC
260 Peachtree Street NW
Suite 2200
Atlanta, GA 30303
Tel: +1-678-954-0670
Fax: +1-404-961-1892
Web: http://www.evaristesys.com/

On 7/19/2011 2:07 PM, Michael wrote:
> We would like Asterisk to listen on port 5060 and on an additional port.
>  From what we read online, it's not really possible, so is it possible
to
if you're running iptables, you can set up a pretty simple rule to 
forward your additional port to 5060.

http://www.cyberciti.biz/faq/linux-port-redirection-with-iptables/

remember UDP vs TCP.

-- 

Jeremy Kister
http://jeremy.kister.net./

On 2011-07-19 20:07, Michael wrote:
> Hello,
>
> We would like Asterisk to listen on port 5060 and on an additional
> port. From what we read online, it's not really possible, so is it
> possible to install a separate instance of Asterisk on the same
> machine (without using Vmware or such) and set the 2nd instance to
> listen on another port?
I've used openvz for this, it's not realy virtualisation - all the
virtual machines (asterisk-boxes) share the same linux kernel.

If you want to use dahdi/meetme you will have to let the VE's use the
/dev/dahdi devices but thats not very hard.

-- 
Johan Wilfer                 email: johan at jttech.se
JT Tech | Utvecklare         webb: http://jttech.se
direkt: +46 31 380 91 01  support: +46 31 380 91 00

Hi,
> so is it possible to install a separate instance of Asterisk on the same
> machine (without using Vmware or such) and set the 2nd instance to
> listen on another port?
you might try it with Xen as virtualisation solution, because especially
when using it with Linux as paravirtualised guest, it has very little
overhead.

Depending on the number of accounts and calls you might run into issues
with latency and so on, but on a small environement with two Xen guest
instances, each with one Asterisk, it runs quite good.

KVM also might work, but I have no experience with that.
-- 

Chau y hasta luego,

Thorolf

On 7/19/11 11:07 AM, Michael wrote:
>
> We would like Asterisk to listen on port 5060 and on an additional port.
From what
> we read online, it's not really possible, so is it possible to install
a separate
> instance of Asterisk on the same machine (without using Vmware or such) and
set
> the 2nd instance to listen on another port?
all you have to do is setup port forwarding from an
alternate port to 5060. we're doing that on our server.
works like a charm.

e.g.

iptables -t nat -I PREROUTING 1 -i <your-interface> -d
<your-ip-addr> \
   -p udp -m udp --dport 6060 -j DNAT --to-destination <your-ip-addr>:5060

this sets up port 6060 to forward to 5060.

-- 
Edwin Lam <edwin.lam at officegeneral.com>
Systems Engineer, OfficeWyze, Inc.
Ph: +1 415 439 4988 Fax: +1 415 283 3370
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