Key Features Install and configure proxy-based and stateful-filtering firewalls Protect internal IP addresses with NAT and deploy a secure DNS architecture Develop an Internet/intranet security policy to protect your organization's systems and data Reduce your susceptibility to an attack by deploying firewalls, data encryption and decryption and other countermeasures Description In this book, you will gain extensive hands-on experience installing and configuring a firewall. You will also learn how to allow access to key Web services while maintaining your organization's security, as well as how to implement firewall-to-firewall virtual private networks (VPNs). You will learn how to build a firewall to protect your network; provide access to HTTP and FTP services on the Internet, and implement publicly accessible servers without compromising security. Furthermore, throughout the book, extensive hands-on examples provide you with practical experience in establishing security with firewalls. Examples include, but are not limited to: Installing and configuring Check Point FireWall-1; scanning to validate configuration using ISS Internet Scanner; configuring the firewall to support simple and complex Web services; setting up a packet filtering router; enhancing firewall configurations to support split-DNS; authenticating remote users; and protecting browsers and servers with a proxy-based firewall. Readership System administrators, government computer security officials, network administrators Author Information By John R. Vacca , Security specialist, IT consultant, and technical writer, U.S.A.; and Scott Ellis , Independent Consultant, Chicago, IL, U.S.A. Table of Contents Firewalls: What Are They?; Type Of Security Policy; Firewall Types; Choosing The Right Firewall; Firewall Topologies; Installation Preparation; Firewall Configuration; Simple Policy Implementation; Complex Services Management; Filtering Content; Publicly Accessible Servers Implementation; Architec