How to enable receiving UDP syslog message on Ubuntu

After loosing lot's of my precious time, here is how to enable receiving remote syslog message on a Ubuntu server 10.04 LTS:

1. Create a new file in /etc/rsyslog.d/ and call it udp_server as example:
• vim /etc/rsyslog.d/udp_server
2. Add these 2 lines:
• $ModLoad imudp
• $UDPServerRun 514
3. Restart rsyslog: sudo service rsyslog restart
4. Check that it's working:
• echo "FreeBSD rocks!" | nc -w0 -u 127.0.0.1 514
• sudo tail /var/log/messages

Don't modify the file /etc/rsyslog.conf, it's not used at all !