By Gary R. Wright, W. Richard Stevens
Bestselling writer W. Richard Stevens groups up with Gary Wright for the second one quantity within the winning TCP/IP Illustrated sequence. This quantity makes a speciality of implementation concerns. The authors use genuine operating code--15,000 strains of code--together with photographs and outlines of all facts buildings and algorithms to aid the reader grasp the TCP/IP protocol suite.
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All rights of reproduction in any form reserved. 1 2 Chapter 1 Security Is Inconvenient Security, by its very nature, is inconvenient, and the more robust the security mechanisms, the more inconvenient the process becomes. Employees in an organization have a job to do; they want to get to work right away. Most security mechanisms, from passwords to multifactor authentication, are seen as roadblocks to productivity. One of the current trends in security is to add whole disk encryption to laptop computers.
As of this writing, the National Vulnerability Database sponsored by the National Institute of Standards and Technology (NIST) lists 33,428 common vulnerabilities and exposures and publishes 18 new vulnerabilities per day . In addition, the media is filled with stories of stolen laptops, credit-card numbers, and identities. The volume of threats to a network can be mind numbing. ” Probable threats are those that are most likely to have an impact on your business and the ones most likely to get the attention of management.
In recent years, cellular networks have become open public networks to which end subscribers have direct access. This has greatly increased the threats to the cellular network. Though cellular networks have vastly advanced in their performance abilities, the security of these networks still remains highly outdated. As a result, they are one of the most insecure networks today—so much so that using simple off-the-shelf equipment, any adversary can cause major network outages affecting millions of subscribers.