Books

Hoskins, Jim, and Bob Frank Exploring IBM eServer zSeries and S/390 Servers: See Why IBM's Redesigned Mainframe Computer Family Has Become More Popular than Ever! Florida: Maximum Press, 8th Edition, 2003. (ISBN: 1 855068 91 3)

Raymond, Eric S. The Cathedral and the Bazaar. O'Reilly & Associates, February 2001. (ISBN: 0 596001 08 8)

Schneier, Bruce Applied Cryptography. Protocols, Algorithms and Source Code. C. John Wiley & Sons, 2nd. Edition, 1995. (ISBN: 0 471117 09 9)

Ziegler, Robert Linux Firewalls. New Riders Publishing, 1999. (ISBN: 0 735709 00 9)

Zwicky, Elizabeth, Simon Cooper, and Brent Chapman Building Internet Firewalls. O'Reilly & Associates: 2nd Edition, June 2000. (ISBN: 1 565928 71 7)