I want to do syslogging from Java. There is a log4j appender, but it doesn't seem to work (for me anyway ... though Google results show many others with this issue still unresolved).

I'm trying to debug the appender, so I've written the following script based upon RFC3164

It runs, but no logging appears in the syslog.

// scala
import java.io._
import java.net._
val ds = new DatagramSocket()
val fullMsg = "<11>May 26 14:47:22 Hello World"
val packet = new DatagramPacket(fullMsg.getBytes("UTF-8"), fullMsg.length, 
  InetAddress.getLocalHost, 514)
ds send packet
ds.close

I also tried using /bin/nc, but it doesn't work either.

echo "<14>May 26 15:23:83 Hello world" > nc -u localhost 514

The Ubuntu command /usr/bin/logger does work, however.

logger -p user.info hello world
# logs: May 26 15:25:10 dsupport2 jem: hello world

What could I be doing wrong?