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End-to-End Network Security: Defense-in-Depth by Omar Santos

By Omar Santos

End-to-End community safeguard is designed to counter the recent new release of complicated threats. Adopting this powerful defense process defends opposed to hugely refined assaults that could ensue at a number of destinations on your community. the last word target is to set up a collection of defense functions that jointly create an clever, self-defending community that identifies assaults as they happen, generates signals as acceptable, after which immediately responds. End-to-End community safeguard will give you a finished examine the mechanisms to counter threats to every a part of your community. The e-book begins with a evaluation of community safety applied sciences then covers the six-step method for incident reaction and top practices from proactive safety frameworks. Later chapters hide instant community safeguard, IP telephony defense, facts heart protection, and IPv6 defense. ultimately, a number of case stories representing small, medium, and massive organizations offer precise instance configurations and implementation concepts of top practices realized in past chapters.

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Extra resources for End-to-End Network Security: Defense-in-Depth

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The following are CSA-rich security features: • • • Host intrusion prevention Protection against spyware Protection against buffer overflow attacks 12 Chapter 1: Overview of Network Security Technologies • • • • • NOTE Distributed host firewall features Malicious mobile code protection Operating system integrity assurance Application inventory Extensive audit and logging capabilities Host intrusion prevention systems (HIPS) are detailed and described later in this chapter. Virtual Private Networks (VPN) Organizations of all sizes deploy VPNs to provide data integrity, authentication, and data encryption to assure confidentiality of the packets sent over an unprotected network or the Internet.

You can use routing techniques as security tools. This chapter gave you an example of different routing techniques such as RTBH and sinkholes that you can use to increase the security of the network and to react to new threats.

The NAC Agent alerts the NAD of any changes on the client machine. The NAD uses this information to issue full revalidation and posture assessment. This mechanism prevents hosts from being validated but not checked if their security posture has changed after they have been granted access to the network. NAC Agentless Hosts (NAH) are devices on which the Cisco NAC Agent has not been installed. These devices can be printers, IP Phones, scanners, and other systems such as contractor and guest workstations.

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