This article can also be found in the Premium Editorial Download "Information Security magazine: How to stop data leakage."
Download it now to read this article plus other related content.
By Juergen Schneider Everyone knows a firewall between the intranet and Internet is a good idea, but did you know that barriers inside the network also serve an important function? This tip, excerpted from Dr. Juergen Schneider's "SAP System Security for the Intranet and Internet" in the Jan/Feb/Mar 2001 issue of SAP Insider, covers ways that you can secure a network to protect data from internal as well as external attacks.
A well-designed network features different protection zones and only a very few well-known and protected transitions between these zones. To get from one zone to another, communication traffic has to pass through a firewall system. Nowadays, everybody expects a firewall between a company's intranet and the public Internet. Fewer people recognize the value of firewalls inside the corporate network, separating mission- critical SAP applications and database servers from the hundreds and thousands of PCs and user workstations in the client network. How sure are you about the intentions of your internal users and the nature and modification status of the software installed on their PCs? Just as you set up "Demilitarized Zones" (DMZs) at the border between the Internet and your intranet and place Web servers and proxies between an external and an internal firewall, inside your corporate network you need well-configured network routers, address and port filters and
Related book Security Fundamentals for E-Commerce
Author : Vesna Hassler
Publisher : Artech House
ISBN/CODE : 1580531083
Cover Type : Hard Cover
Pages : 416
Published : Nov. 2000
If you're charged with maintaining the security of e-commerce sites, you need this unique book that provides an in-depth understanding of basic security problems and relevant e-commerce solutions, while helping you implement today's most advanced security technologies. From designing secure Web, e-commerce and mobile commerce applications, to securing your internal network, to providing secure employee/user authentication, this cutting-edge book gives you a valuable security perspective you won't find in other resources.
This was first published in April 2001