Building Internet Firewalls (2nd Edition)
by Elizabeth D. Zwicky, Simon Cooper, D. Brent Chapman

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Book Reviews of Building Internet Firewalls (2nd Edition)

Book Review: Classic book at creating your own Firewall!
Summary: 5 Stars

Summary of Building Internet Firewalls (2nd Edition)

If there's a shortcoming to this book, it's its lack of coverage of the turnkey firewall products that are becoming popular among home and small-office users. Emphasis here is on more complicated network defenses that require careful design and setup--both design and implementation are the order of the day here. The authors carefully enumerate the threats they see in various situations, go into some detail on how those threats manifest themselves, and explain what configuration changes you can make to your perimeter defenses to repulse those threats. Plenty of illustrations make points about good and bad security strategies (you want to put the routers here and here, not here or here). You'll learn a lot by reading this book from cover to cover, no matter how much experience you have. --David Wall

Topics covered: Means of protecting private networks from external security threats. The authors go into detail on attackers' means of exploiting security holes in common Internet services, and show how to plug those holes or at least limit the damage that can be done through them. With coverage of Unix, Linux, and Windows NT, the authors detail their philosophies of firewall design and general security policy.

What kinds of security threats does the Internet pose? Some, like password attacks and the exploiting of known security holes, have been around since the early days of networking. And others, like the distributed denial of service attacks that crippled Yahoo, E-Bay, and other major e-commerce sites in early 2000, are in current headlines.

Firewalls, critical components of today's computer networks, effectively protect a system from most Internet security threats. They keep damage on one part of the network--such as eavesdropping, a worm program, or file damage--from spreading to the rest of the network. Without firewalls, network security problems can rage out of control, dragging more and more systems down.

Like the bestselling and highly respected first edition, "Building Internet Firewalls," 2nd Edition, is a practical and detailed step-by-step guide to designing and installing firewalls and configuring Internet services to work with a firewall. Much expanded to include Linux and Windows coverage, the second edition describes:

Firewall technologies: packet filtering, proxying, network address translation, virtual private networks

Architectures such as screening routers, dual-homed hosts, screened hosts, screenedsubnets, perimeter networks, internal firewalls

Issues involved in a variety of new Internet services and protocols through a firewall

Email and News

Web services and scripting languages (e.g., HTTP, Java, JavaScript, ActiveX, RealAudio, RealVideo)

File transfer and sharing services such as NFS, Samba

Remote access services such as Telnet, the BSD "r" commands, SSH, BackOrifice 2000

Real-time conferencing services such as ICQ and talk

Naming and directory services (e.g., DNS, NetBT, the Windows Browser)

Authentication and auditing services (e.g., PAM, Kerberos, RADIUS);

Administrative services (e.g., syslog, SNMP, SMS, RIP and other routing protocols, and ping and other network diagnostics)

Intermediary protocols (e.g., RPC, SMB, CORBA, IIOP)

Database protocols (e.g., ODBC, JDBC, and protocols for Oracle, Sybase, and Microsoft SQL Server)

The book's complete list of resources includes the location of many publicly available firewall construction tools.

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