ftp://ftp.kfki.hu/pub/packages/security/COAST/ids/  direct

[DIR]tripwire/  direct  2045+ twin directories
[DIR]snort/  direct  3216+ twin directories
[DIR]phf/  direct  15 twin directories
[DIR]dtk/  direct  223+ twin directories
[DIR]AAFID/  direct  46 twin directories