I am using JBoss 4.0.0 with Tomcat, and I have noticed that whenever my browser opens up a TCP connection to the web server, the server attempts (unsuccessfully) to establish a TCP connection to port 113 on the host where the browser is running. Reading the Apache documentation, this would appear to imply that the IdentityCheck option is enabled, even though the documentation indicates that this option is disabled by default.

This option can cause problems in firewall scenarios where the TCP traffic on port 113 is discarded, because the server waits for a 30 second timeout before proceeding. As such, I would like to disable this option, but I haven't been able to figure out how to do that in the standard JBoss 4.0.0 environment.

Does anyone know how to do this?