The Sleuth Kit is a collection of open source file
system forensics tools that allow one to view
allocated and deleted data from NTFS, FAT, FFS,
and EXT2FS images. The Autopsy Forensic Browser
provides a graphical interface to The Sleuth Kit.
AFS is a distributed filesystem which offers a client-server architecture, transparent data migration abilities, scalability, a single namespace, and integrated ancillary subsystems.
A frontend for ClamAV.
An anonymous operating system.