samhain: samhain (file integrity / intrusion detection system) samhain: samhain: The Samhain host-based intrusion detection system (HIDS) provides samhain: file integrity checking and log file monitoring/analysis, as well as samhain: rootkit detection, port monitoring, detection of rogue SUID samhain: executables, and hidden processes. samhain: Samhain been designed to monitor multiple hosts with potentially samhain: different operating systems, providing centralized logging and samhain: maintenance, although it can also be used as standalone application samhain: on a single host. samhain: