Remote JNDI lookup return local host IP

[doktora]

Hi,

I have tomcat running on an external server (not on the same subnet) from JBoss 4.2.1 :

Tomcat <--> [ExternalIP] FW <--> [InternalIP] JBoss

JBoss is started with -b InternalIP

Tomcat is configured with java.naming.provider.url=jnp://ExternalIP:1099

What happens is that Tomcat connects to JBoss on 1099, then tries to get to InternalIP:1098, which is not visible from the Tomcat server (I assume JBoss tells it to connect to the IP on which it's listening - InternalIP).

Eventually Tomcat gives up with:

javax.naming.CommunicationException [Root exception is java.rmi.ConnectException: Connection refused to host: <InternalIP>; nested exception is:
 java.net.ConnectException: Connection timed out]

Any thoughts on how to configure this setup properly?
Thanks
dok

[doktora]

This can be partially fixed with setting this in jboss's run.conf as per http://www.jboss.org/community/wiki/UsingJBossBehindAFirewall:

JAVA_OPTS="$JAVA_OPTS -Djava.rmi.server.hostname=<ExternalIP> -Djava.rmi.server.useLocalHostname=false"

However, this breaks some MDB's (won't deploy, I suspect they try to get to ExternalIP and that's not resolvable from behind the firewall).

Also, the client (Tomcat) still gets stuck while trying to bind to LocalIP:3873 which is the ejb3.deployer port -- from server/all/deploy/ejb3.deployer/META-INF/jboss-service.xml:

<attribute name="InvokerLocator">socket://${jboss.bind.address}:3873</attribute>

[/url]

[robertwilson]

I ran into this problem, I fixed it by binding to the hostname in DNS, then configuring the external and internal DNS servers to resolve this hostname to external and internal IP addresses respectively.

[doktora]

Resolved, after more reading of the above wiki page.

The final piece of the puzzle was taking the first step in the "PooledInvoker" section, that is adding

<attribute name="clientConnectAddress">webaddress.com</attribute>
 <attribute name="clientConnectPort">3873</attribute>

to jboss/server/all/deploy/ejb3.deployer/META-INF/jboss-service.xml

(I didn't change the http-invoker.sar).