Recommendations for DDOS detection software?

Hello there,

Does anyone have any recommendations for DDOS detection software which runs on Linux? We're currently testing out Network Probe:

  http://objectplanet.com/probe/

We've written some custom "top talkers" scripts to analyze tcpdump data, but we'd like a more elegant solution with some basic alarm functionality.

Thanks!

Hello Major,
You could do this easly with http://www.snort.org/ .

regards,
matthias