By Richard Deal

Richard Deal's reward of constructing tough expertise strategies comprehensible has remained consistent. if it is featuring to a room of knowledge know-how pros or writing books, Richard's communique abilities are unsurpassed. As info know-how pros we're confronted with overcoming demanding situations each day...Cisco ASA Configuration is a brilliant reference and gear for answering our demanding situations. --From the Foreword by means of Steve Marcinek (CCIE 7225), platforms Engineer, Cisco structures A hands-on advisor to enforcing Cisco ASA Configure and continue a Cisco ASA platform to satisfy the necessities of your safety coverage. Cisco ASA Configuration indicates you ways to manage site visitors within the company community and safeguard it from inner and exterior threats. This entire source covers the most recent gains on hand in Cisco ASA model 8.0, and comprises designated examples of complicated configurations and troubleshooting. enforce and deal with Cisco's strong, multifunction community adaptive defense equipment with aid from this definitive consultant. Configure Cisco ASA utilizing the command-line interface (CLI) and Adaptive protection gadget supervisor (ASDM)Control site visitors during the equipment with entry keep watch over lists (ACLs) and item groupsFilter Java, ActiveX, and web pages Authenticate and authorize connections utilizing Cut-through Proxy (CTP)Use Modular coverage Framework (MPF) to configure defense equipment featuresPerform protocol and alertness inspectionEnable IPSec site-to-site and distant entry connectionsConfigure WebVPN elements for SSL VPN accessImplement complicated positive factors, together with the obvious firewall, defense contexts, and failoverDetect and forestall community attacksPrepare and deal with the AIP-SSM and CSC-SSM playing cards

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All of these products use the same operating system and management tools, easing your implementation and monitoring tasks. Because all the security appliances use the same operating system, the major differences between the models primarily concern scalability and performance. The ASA family of products (and their older siblings, the PIX products) can best be described as hybrid firewalls. Cisco, however, does not like to use the term “firewall” to describe the ASA and PIX product family. Instead, Cisco prefers using the term “security appliance,” mainly because the ASA products and the products they replaced, the PIX products, are not just stateful firewalls; they also support many other security features, including ▼ Secure, real-time, proprietary operating system ■ Stateful firewall using the Cisco Security Algorithm (SA) ■ Sequence Number Randomization (SNR) to secure TCP connections ■ Cut-through Proxy (CTP) for authenticating telnet, HTTP, and FTP connections ■ Default security policies to ensure maximum protection, as well as the ability to customize these policies and build your own policies ■ Virtual private network (VPN) abilities: IPSec, SSL, and L2TP ■ Intrusion detection and prevention systems (IDS and IPS) ■ Address translation using dynamic and static network and port address translation ■ Stateful redundancy of connections and VPNs between two security appliances ▲ Virtualization of policies using contexts This is just a small list of some major features of the security appliances.

To the right of this is a 10/100 Fast Ethernet management port. The management port is meant to be used for out-of-band management of the appliance when using things like ASDM, SSH, telnet, FTP, and other IP management protocols or applications. Below this are two USB ports. To the right of these are four Ethernet ports. On the 5520s and higher these are autosensing 10/100/1000. For the 5510, these are locked down, in software, to 10/100. To the right of these ports is a compact flash card slot.

I’m continually amazed at the number of times curious people and hackers on the Internet have attempted to scan and probe my home office network. Because of the large number of products available, I have limited the focus of this book primarily to Cisco’s ASA security appliance family. Most of what I discuss in this book also applies to Cisco’s end-of-sale PIX security appliances, and where there are differences I point them out. Many of the readers of my previous book on the PIXs have constantly asked me to update it; having a family life has slowed down my writing, but I’m back in the groove.

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