[Planetlab-users] Listening in well-known ports

[Italo Dacosta]

Hi Gun,

The goal of my project is to study how the use of security mechanisms and
protocols impact the QoS and performance of a SIP VoIP infrastructure. The
idea is to create several basic SIP domains infrastructures consisting of
SIP clients (UAC), a SIP proxy, and a DNS server. Each SIP domain will be
implemented in a Planetlab location (using at least 3 nodes in each
location). The idea is to have a LAN communication between the members of a
domain and WAN communication between domains.  

Therefore, I need to run BIND to provide DNS service in each domain. 

Until now, I only need to run BIND on port 53 in at least 3 nodes. 

Please, let me know what is the procedure to do this.

Thank you,
ID 

-----Original Message-----
From: Emin Gun Sirer [mailto:egs at systems.cs.cornell.edu] 
Sent: Saturday, April 21, 2007 3:48 PM
To: Italo Dacosta
Cc: users at lists.planet-lab.org
Subject: Re: [Planetlab-users] Listening in well-known ports

Hi Italo,

Fixed ports are resources that we have to share. The projects that have a
declared need to run on port 53 have a space multiplexing in place.
All of us would be happy to accommodate you by releasing the ports on some
subset of machines for your use, but I have a few questions: Could you
describe the goals & needs of your project? Why do you need to run BIND? And
on how many nodes do you need to run something on port 53?

Gun.

On Sat, 2007-04-21 at 15:29 -0400, Italo Dacosta wrote:
>  Hi,
> 
> I would like to know if it is possible to run server applications 
> listening in well-known ports (0 through 1023) in a Planetlab FC4 
> node. I have been trying to run a DNS server (ISC Bind named 9.4.0) 
> but instead of listening in port 53/UDP (i.e. -p 53 parameter), the 
> node assigns a dynamic port
> (49152 through 65535) to it. I have tried running it as a unprivileged 
> and privileged (root) user.
> 
> Any idea or suggestions?
> 
> Thanks,
> ID
> 
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