Tim, here's my service-config def in bindings file: | < <config> | < <invoker transport="bisocket"> | < <attribute name="marshaller" isParam="true">org.jboss.jms.server.remoting.JMSWireFormat</attribute> | < <attribute name="unmarshaller" isParam="true">org.jboss.jms.server.remoting.JMSWireFormat</attribute> | < <!-- Serialization type must be jms - do not change! --> | < <attribute name="serializationtype" isParam="true">jms</attribute> | < <attribute name="dataType" isParam="true">jms</attribute> | < <attribute name="socket.check_connection" isParam="true">false</attribute> | < <attribute name="timeout">0</attribute> | < <attribute name="serverBindAddress">${jboss.bind.address}</attribute> | < <attribute name="serverBindPort">4457</attribute> | < <attribute name="leasePeriod">10000</attribute> | < <attribute name="callbackStore">org.jboss.remoting.callback.CallbackStore</attribute> | < <attribute name="clientSocketClass" isParam="true">org.jboss.jms.client.remoting.ClientSocketWrapper</attribute> | < <attribute name="serverSocketClass">org.jboss.jms.server.remoting.ServerSocketWrapper</attribute> | < <attribute name="callbackErrorsAllowed">1</attribute> | < <attribute name="numberOfRetries" isParam="true">1</attribute> | < <attribute name="NumberOfCallRetries" isParam="true">2</attribute> | < <attribute name="clientMaxPoolSize" isParam="true">50</attribute> | < </invoker> | < <handlers> | < <handler subsystem="JMS">org.jboss.jms.server.remoting.JMSServerInvocationHandler</handler> | < </handlers> | < </config> | and the def of remote-service.xml here: <config> | > <invoker transport="bisocket"> | > <attribute name="marshaller" isParam="true">org.jboss.jms.server.remoting.JMSWireFormat</attribute> | > <attribute name="unmarshaller" isParam="true">org.jboss.jms.server.remoting.JMSWireFormat</attribute> | > <!-- Serialization type must be jms - do not change! --> | > <attribute name="serializationtype" isParam="true">jms</attribute> | > <attribute name="dataType" isParam="true">jms</attribute> | > <attribute name="socket.check_connection" isParam="true">false</attribute> | > <attribute name="timeout">0</attribute> | > <attribute name="serverBindAddress">${jboss.bind.address}</attribute> | > <attribute name="serverBindPort">19032</attribute> | > <attribute name="leasePeriod">10000</attribute> | > <attribute name="callbackStore">org.jboss.remoting.callback.CallbackStore</attribute> | > <attribute name="clientSocketClass" isParam="true">org.jboss.jms.client.remoting.ClientSocketWrapper</attribute> | > <attribute name="serverSocketClass">org.jboss.jms.server.remoting.ServerSocketWrapper</attribute> | > <attribute name="callbackErrorsAllowed">1</attribute> | > <attribute name="numberOfRetries" isParam="true">1</attribute> | > <attribute name="NumberOfCallRetries" isParam="true">2</attribute> | > <attribute name="clientMaxPoolSize" isParam="true">50</attribute> | > </invoker> | > <handlers> | > <handler subsystem="JMS">org.jboss.jms.server.remoting.JMSServerInvocationHandler</handler> | > </handlers> | > </config> | The only diff I can see is the serverBindPort which is what you expect to change in the main port bindings file rather than changing at instance level (That is, editing remote-service.xml) This setup however throws the AddresAlreadyInUseException: 2:54:31,995 INFO [ServerPeer] ServerPeer[0] creating server peer with ID 0 | 12:54:32,401 ERROR [SocketServerInvoker] Error starting ServerSocket. Bind port: 4457, bind address: /0.0.0.0 | 12:54:32,405 ERROR [Connector] Error starting connector. | java.net.BindException: Address already in use | Ofcouser this is because, someother server is already using 4457 (and hence using server-config to attah a new port) Thanks Madhu View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4041357#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...