The Sleuth Kit and Autopsy Browser. Both are open source digital investigation tools (a.k.a. digital forensic tools) that run on Unix systems (such as Linux, OS X, FreeBSD, OpenBSD, and Solaris). They can be used to analyze NTFS, FAT, Ext2, Ext3, UFS1, and UFS2 file systems and several volume system types.
TestDisk ist ein leistungsstarkes freies Daten-Wiederherstellungs-Utility! Es wurde in erster Linie erstellt um verlorene Partitionen wiederherzustellen und/oder nicht bootende Festplatten wieder bootfähig zu machen, wenn das Problem durch fehlerhafte Software, bestimmte Arten von Viren oder menschliche Fehler (wie versehentliches Löschen der Partitionstabelle) verursacht wird. Partitionstabellen wiederherstellen mit TestDisk ist wirklich einfach.
Stressful Application Test (or stressapptest, its unix name) tries to maximize randomized traffic to memory from processor and I/O, with the intent of creating a realistic high load situation in order to test the existing hardware devices in a computer. It has been used at Google for some time and now it is available under the apache 2.0 license.
What is Snort?
Snort® is an open source network intrusion prevention and detection system utilizing a rule-driven language, which combines the benefits of signature, protocol and anomaly based inspection methods. With millions of downloads to date, Snort is the most widely deployed intrusion detection and prevention technology worldwide and has become the de facto standard for the industry.