Best Host IDS Tools

I have just setup my Web server on solaris platform and is planning to deploy a freeware IDS. Now I am evaluating the below IDS tools :- AIDE
Snort
Tripwire
Chkrootkit

and would like to have the comments from everyone on which is the best IDS tools ? Or what is the best combination so that I can mix them together to form a more complete IDS enabled environment. Or is there any other better free IDS tools available ?

Below is the criteria of my evaluation.

1. CPU Loading/Utilization - Is the IDS resouce hungry ?
2. Disk Consumption - Is that too much log generated ?
3. Usability - Is the IDS ease of configuration and reconfiguration ? Or have to take days in order to configure it properly ?
4. Completeness - Can the IDS detect most of the intrusion ?
5. Extendability - Can the IDS detect new intrusion ?

Any comments are much appreciated.

Frank Received on Tue Dec 24 12:03:15 2002