JMeter - Loopback address error when launching jmeter-server on Linux

Looks like Glen was right on the money with his comment.

Not sure is this helps but I found a bug which seems to contain a patch for this issue.

https://bugs.launchpad.net/ubuntu/+source/jakarta-jmeter/+bug/589042

Thanks again, Glen!
(If you decide to make it into an actual answer, I'll be sure to accept it!)

In latest version, you can run your script with:

./jmeter-server -Djava.rmi.server.hostname=xxx.xxx.xxx.xxx

Replace xxx.xxx.xxx.xxx with this server's IP address, i.e., the IP address that the controlling jmeter machine will use to connect to this server.