Unix Security

• Lsof  - Unix-specific diagnostic tool that lists information about any file opened by processes running on a system.
• Matt's Unix Security Page  - Presents security information and tools including published papers, Unix-based software, and resource links.
• MCrypt  - Replacement for the crypt package and crypt command that allows developers to use various encryption functions without making major code changes.
• Unix System Security Tools  - Homepage of the book authored by Seth T. Ross and published by McGraw-Hill. Presents excerpts and ordering information.
• Unix Tools: Unix Security  - Guides and information on Unix system and network security. Includes a security checklist.