- Building
Internet Firewalls
 D.
Brent Chapman, et al / Paperback / Published 1995 --- More than a
million systems are now connected to the Internet, and something like 15
million people in 100 countries on all seven continents use Internet
services. More than 100 million email messages are exchanged each day, along
with countless files, documents, and audio and video images. Everyone is
jumping on the Internet bandwagon. Once a haven for academicians and
scientists, the Net is now reaching large and small businesses, government
at all levels, school children, and senior citizens. The commercial world is
rushing headlong into doing business on the Internet, barely pausing while
technologies and policies catch up with their desire to go online. But, too
few of the seekers after Internet wisdom and riches consider whether their
businesses will be safe on the Net. What kinds of security risks are posed
by the Internet? Some risks have been around since the early days of
networking -- password attacks (guessing them or cracking them via password
dictionaries and cracking programs), denial of service, and exploiting known
security holes. Some risks are newer and even more dangerous -- packet
sniffers, IP (Internet Protocol) forgery, and various types of hijacking
attacks. Firewalls are a very effective way to protect your system from
these Internet security threats. Firewalls in computer networks keep damage
on one part of the network (e.g., eavesdropping, a worm program, 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. What is a firewall? It's a hardware and/or software solution
that restricts access from your internal network to the Internet -- and vice
versa. A firewall may also be used to separate two or more parts of your
local network (for example, protecting finance from R&D). The firewall
is installed at the perimeter of the network, ordinarily where it connects
to the Internet. You can think of a firewall as a checkpoint; all traffic,
incoming and outgoing, is stopped at this point. Because it is, the firewall
can make sure that it is acceptable. "Acceptable" means that
whatever is passing through -- email, file transfers, remote logins, NFS
mounts, etc. -- conforms to the security policy of the site. Building
Internet Firewalls is a practical guide to building firewalls on the
Internet. If your site is connected to the Internet, or if you're
considering getting connected, you need this book. It describes a variety of
firewall approaches and architectures and discusses how you can build packet
filtering and proxying solutions at your site. It also contains a full
discussion of how to configure Internet services (e.g., FTP, SMTP, Telnet)
to work with a firewall. The book also includes a complete list of
resources, including the location of many publicly available firewall
construction tools. The book is divided into four parts: Part I discusses
Internet threats, the benefits of firewalls, overall security strategies,
and a summary of Internet services and their security risks. Part II
describes possible firewall designs and general terms and concepts, how to
protect the bastion host in your firewall configuration, how to build
proxying and packet filtering firewalls, and how to configure Internet
services to operate with a firewall. Part III describes how to maintain a
firewall, develop a security policy, and respond to a security incident.
Part IV contains appendices consisting of a resource summary, a directory of
how to find firewall toolkits and other security-related tools, and a
detailed summary providing TCP/IP background information. AN
O'REILLY CLASSIC (and one of their best sellers)
- related titles:
Computer
Security Policies and SunScreen Firewalls
Kathryn M. Walker, Linda Croswhite Cavanaugh / Textbook Binding / Published 1998
- This is a concise guide to building tough network security policies that work.
It starts with detailed coverage of evaluation and planning, appropriate
delegation of responsibilities, implementation, and the role of firewalls. Next,
it introduces Sun Microsystem's flagship security products, the SunScreen EFS
firewall, designed for high-security enterprise networks, and the SunScreen
SPF-200 firewall, designed as a high-security "stealth" firewall. It
also covers the powerful SKIP encryption and key management capabilities, which
enable any user to achieve secure, authenticated communication.
Firewalls
24seven
Matthew Strebe / Paperback / Published 1999 Firewalls 24seven is
the network administrator's essential guide to implementing effective security
at the borders of their network -- between one network and another network,
between one network and an extranet, or between a network and the Internet.
Coverage includes assessing your network's risk and identifying your security
needs, choosing a firewall, and implementing and monitoring it. - an
emerging classic.
Firewalls
and Internet Security : Repelling the Wily Hacker (Addison-Wesley Professional
Computing)
William R. Cheswick, Steven M. Bellovin / Paperback / Published 1994 --
These authors are both well-known senior researchers at AT&T Bell Labs, and
this book is based on their actual experiences maintaining, improving, and
redesigning AT&T's Internet gateway. They show why the most popular
technologies for keeping intruders out are insufficient, while providing a
step-by-step guide to their solution--building firewall gateways.
Firewalls
Complete (Complete Series)
 Marcus
Goncalves / Paperback / Published 1998 -- You get complete coverage
of technical issues, from experts who understand the problems you must solve.
And the CD-ROM lets you demo today's hottest firewall products (because so many
different technologies are on the market, and they're not all created equal.
Inside Firewalls Complete you'll find everything you need to: Hunt down security
threats, especially from the Internet; Get a handle on the full range of
firewall technologies; Understand how firewalls and API security holes interact;
Hammer out a firewall and API security holes interact; Hammer out a firewall
security policy; Select, install, and maintain firewalls; Design your own
firewall; Test off-the-shelf firewall products. (IF YOU
DON'T GET ANYTHING ELSE, GET THIS... THIS IS A MUST HAVE BOOK).
Pcweek
Intranet and Internet Firewalls Strategies
Ronald Sharp, et al / Paperback / Published 1996
Protecting
Your Web Site With Firewalls
Marcus Goncalves, Vinicius A. Goncalves / Paperback / Published 1997 -
Featuring a clear, conversational style, this reference cuts through the theory,
acronyms and jargon common in many books on Web
security to focus on proven, reliable
firewall solutions. The book includes practical examples,
illustrations, and step-by-step instructions on the
"hows and whys" of setting up firewalls. The CD-ROM
contains trial versions of many commercially available tools.
Building
Linux and OpenBSD Firewalls
Wes Sonnenreich, Tom Yates / Paperback / Published 1999
Firewalls
: A Complete Guide
Goncalves(Editor), Marcus Goncalves / Paperback / Published 1999 -- This
book contains all the information a network administrator needs to know about
choosing, administering, and deploying a firewall. The extensive firewalls
resource sections--discusses major firewall technologies and brands, their
advantages and disadvantages, what to watch for, what to avoid, as well as what
to look for in a firewall product. In addition to covering the major firewall
products on the market, and the latest security threats and countermeasures,
there is complete information on: Virtual Private
Networks (VPNs); the latest encryption technologies; the "cyberwall"
for new Web-based firewalls.
Firewalls
and Internet Security : Repelling the Wily Hacker (Addison-Wesley Professional
Computing Series)
William R. Cheswick, Steven M. Bellovin (Contributor) / Paperback / Published
2000 from the "AT&T Bell Labs researchers who tracked the "Berferd"
hacker and built the firewall gateway at Bell Labs,"
Firewalls
Clearly Explained (Clearly Explained)
Paul D. Robertson / Paperback / Published 1999
Linux
Firewalls
 Robert
Ziegler / Paperback / Published 1999 -- An
Internet-connected Linux machine is in a high-risk situation. This
book details security steps that a small non-enterprise business user might take
to protect themselves when dealing with what the attacker may gain and what a
victim may lose. These steps include packet-level
firewall filtering, IP masquerading, proxies, tcp wrappers, system integrity
checking, and system security monitoring with an overall emphasis on filtering
and protection. This book will provide a description of the need for
security measures and solutions. The goal is to help people get their Internet
security measures in place quickly, without the need to become an expert in
security or firewalls.
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