TY - BOOK AU - Howlett,Tony TI - Open source security tools: practical applications for security SN - 0321194438 PY - 2005/// CY - Upper Saddle River, NJ PB - Prentice Hall KW - Computer security KW - Computer networks KW - Security measures KW - Open source software N1 - Includes bibliographical reference (p. 555-557) and index ER -