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 /etc/hosts
file.
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.