"a hardened OS that includes Snort IDS sensor (version 2.9.0.4) with all the Sguil components ready to use."It's available in both 32 bit and 64 bit versions and each version has three options:
"sensor only, database only or all components on the same system"Be sure and check it out, if this will help you get starting using Snort and Sguil faster.
Link to the Internet Storm Center Article is here.