By Annlee Hines

The examination Cram approach to research specializes in precisely what you must get qualified now.In this ebook you are going to learn the way to:* determine the data resources in a community which has to be safe* realize which threats practice to which community resources* decide upon a suitable know-how to mitigate a hazard* practice community protection in layers* pick out the precise protection product to guard the community ingress from the web* DMZ* VPNs* Campus servers* administration community* Branches* defend community units from misuse through hackers* decide upon replacement protection designs

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Extra info for CCSP CSI Exam Cram 2 (Exam Cram 642-541)

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Spies are usually third parties that obtain information for others; competitors are trying to obtain it for themselves. Either way, the hackers here generally pose a structured threat due to their greater skill and more organized effort. Thieves are another group that has plagued business since there was such a thing as business. And the crime must pay (or, at least, be expected to pay) often enough to make it worthwhile to keep trying theft. What can be stolen via a network? Information such as credit card numbers or other data for perpetrating identity theft is always valuable.

Network Commands When a hacker has a notion of addresses and names, it's time to do some serious probing. Simple utilities built into the TCP/IP stack are where most hackers start: • ping (more on this perennial favorite coming up) • traceroute (or tracert, for Windows) • whois • finger • telnet • dig • nmap • nslookup • rusers (and all the other Unix "r commands," such as rlogin, rcp, and rexec) • rpcinfo Some of these utilities are not found in systems running the various versions of Microsoft Windows, but they are generally present in Unix and Unix-derived systems (such as Linux, OpenBSD, or FreeBSD).

External-Facing Assets External-facing assets are those that you control but that connect directly to devices that you do not control. These are your edge or perimeter routers, NASs, and firewalls the guardians of your gates. Cisco refers to this part of the network as the edge in the SAFE architecture. Although many of us learned about demilitarized zones (DMZs) as areas to host public-facing servers, the edge is much more than just the DMZ. In fact, the edge contains all the devices that connect to your Internet service provider (ISP), the public switched telephone network (PSTN), your wireless access points (WAPs), and so on.

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