Firewalls: Jumpstart for Network and Systems Administrators

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.

· 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

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; Architecture Selection; External Servers Protection; Firewall Architecture DNS Customization; Network Address Translation (NAT) Deployment; Privacy And Authentication; Tunneling: Firewall-to-Firewall; Auditing And Logging; Firewall Administration; Summary, Conclusions, and Recommendations