Today I had an issue remotely accessing my JBoss instance running on another machine. Unknowingly, JBoss 4.2 binds specifically to 127.0.0.1 by default (see below for me details). Thankfully they had a simple solution; just append -b 0.0.0.0 to your startup script. to bind to all interfaces. So to start JBoss on linux when I know I want to access it remotely I do:
./jboss/bin/run.sh -b 0.0.0.0
ReadMe.html content on this subject:
"JBossAS now binds its services to localhost (127.0.0.1) *by default*, instead of binding to all available interfaces (0.0.0.0). This was primarily done for security reasons because of concerns of users going to production without having secured their servers properly. To enable remote access by binding JBoss services to a particular interface, simply run jboss with the -b option. To bind to all available interfaces and re-enable the legacy behavior. use -b 0.0.0.0. In any case, be aware you still need to secure you server properly."