JMS Messaging configuration

Question

Hi,
I wrote a Flex app (prototype of JMS dashboard), which:
1) every 3 secs generates JMS message with some random number and sends it to JMS queue;
2) receives that message from JMS queue, gets that number and displays it in the LineChart component.
In service-config.xml I specify localhost in messagebroker URL, because I deploy on JBoss5.1 using its JMS (similar to ActiveMQ).
When I deploy my Flex app on JBoss on my PC, it works just fine,
but if I deploy on JBoss on Linux server, messaging does not work.
Both JBoss servers have exactly the same configuration.
The only difference I see is that in both cases I download that Flex App
to PC (i.e. from the same computer), but in case of Linux it is not the same computer.
Can that be the problem ? 
Do I have to specify the server name instead of localhost in messagebroker URL?
Or do I need a crossdomain file ?
Using Flex3.2, BlazeDS 3.2,  JDK1.6  (Win XP or OpenSuse Linux 10.3), IE9 or FireFox3.
Please help !
TIA,
Oleg.

Answer 1

Very interesting !
So what you are saying is that I should not hardcode "localhost", but use {server.name} and {server.port} instead ?
Is this also applicable to other parts of  configuration, like JNDI in Initial Context URL in messaging-config.xml:
<initial-context-environment>
      <property>
            <name>Context.INITIAL_CONTEXT_FACTORY</name>
            <value>org.jnp.interfaces.NamingContextFactory</value>
       </property>
       <property>
            <name>Context.PROVIDER_URL</name>                      
            <value>jnp://localhost:21099</value>   //have few instances of JBoss on  Linux box, so I put 21099 instead of standard 1099, 8080->28080
       </property>                   
</initial-context-environment>
or in Java code for properties passed to InitialContext :
props.setProperty(Context.PROVIDER_URL, "jnp://localhost:21099");
I will try that now.
Also will try to install Firefox & Flash plugin on Linux and play with it.
Thank you,
Oleg.