26.6. 보안 참고 문헌

Cheswick, William R. and Steven M. Bellovin. 방화벽과 인터넷 보안: Repelling the Wily Hacker. Reading, Mass. : Addison-Wesley, 1995.
ISBN 0-201-63357-4
Garfinkel, Simson and Gene Spafford. 실용 유닉스 보안 . 2 개정판. O'Reilly & Associates, Inc., 1996.
ISBN 1-56592-148-8
Garfinkel, Simson. PGP Pretty Good Privacy O'Reilly & Associates, Inc., 1995.
ISBN 1-56592-098-8