The JBoss Application Server Monitor test button always fails with the message
Please check the host and port configuration or returns an exception containing
Connection refused to host: 127.0.0.1 with a JBoss Application Server running on a Linux box.
This is a well-known issue on some Linux distributions. It is necessary to edit the
If the file content looks like
127.0.0.1 myserver.server.com myserver localhost localhost.localdomain, it must be updated using the following sample.
127.0.0.1 localhost localhost.localdomain
myipserver myserver.server.com myserver
The JBoss Application Server must be restarted before trying again.