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Mission Critical Internet Security

by Bradley Dunsmore and Jeffrey Brown

You'll enjoy the war stories that appear as sidebars; they call your attention to common errors (and make you feel better if you've made them). You'll also appreciate the carefully considered question-and-answer sections that explain umpteen design alternatives (SOCKS proxy versus Winsock proxy, for example) and engineering challenges (one example: building an IPsec virtual private network between firewalls from different manufacturers). Product-specific sections on Microsoft Proxy Server, Cisco PIX, Symantec Raptor, and Check Point FireWall-1 include a lot of detail, and Syngress promises to keep up with manufacturer upgrades (via Web updates to this book) for at least a year. Worth its price for its conceptual information alone (particularly the IPsec part), this book will really please you if you're installing one of the firewalls it focuses on. --David Wall

Topics covered: How to protect a private network from outside intrusion, while allowing its users Internet access and connectivity via virtual private networks (VPNs). Particularly detailed coverage goes to IPsec, Kerberos, Cisco PIX, Symantec (formerly Axent) Raptor, Microsoft Proxy Server, and Check Point FireWall-1.

Book Description
The growth of the Internet and its reach into the fabric of business and personal life has outdistanced most organizations' ability to protect the confidentiality and integrity of information. The increased exposure and the constant escalation of threats to network security have increased the need for effective controls that can restore availability, confidentiality, and integrity to information systems. Mission Critical! Internet Security shows how security can be provided in TCP/IP at any layer, and outlines the advantages and disadvantages of each approach. This book will answer the questions you have about Internet Security, including:

• If I use protocol switching on my network, what protocol should I use in place of IP?
• Should I be placing my VPN gateway at the same level as my firewall?
• Can I use IPSec to secure communications with my Win 9x machines?
• Are there back doors in PGP?
• Would a firewall or other security product interfere with the IDS?
• How does SOCKS Proxy differ from WinSock Proxy?
• I am setting up my outbound access control lists to specify which traffic I will permit users to use. How do I know which TCP or UDP port a particular application uses?

Stace Cunningham (CMISS, CCNA, MCSE, CLSE, COS/2E, CLSI, COS/2I, CLSA, MCPS, A+) is a security consultant currently located in San Antonio, TX. He has assisted several clients, including a casino, in the development and implementation of network security plans for their organizations. He held the positions of Network Security Officer and Computer Systems Security Officer while serving in the United States Air Force. While in the Air Force, Stace was heavily involved in installing, troubleshooting, and protecting long-haul circuits, ensuring the appropriate level of cryptography necessary to protect the level of information traversing the circuit as well the circuits from TEMPEST hazards. This included American equipment as well as equipment from Britain and Germany while he was assigned to Allied Forces Southern Europe (NATO). Stace has been an active contributor to The SANS Institute booklet “Windows NT Security Step by Step.” In addition, he has co-authored or served as the Technical Editor for over 30 books published by Osborne/McGraw-Hill, Syngress Publishing, and Microsoft Press. He has also written articles for “Internet Security Advisor” magazine.

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