Secure Your Network for Free: Using NMAP, WIRESHARK, SNORT, NESSUS, and MRTG

You may be looking for inexpensive ways to solve a security problem and want to know more about the free tools that are available.This book will guide you to some of the best free solutions. In some environments, taking the initiative and implementing any type of security measures can get you in trouble; even with the best planning, problems can arise.This chapter will help you gain the support you need in order to implement a cost saving solution.

Whether you are the person implementing the changes and need to “sell” the solution to your manager, or you’re the person making the decisions and need to understand the true implications of a particular “free” solution, this chapter will help you find solutions to your security problems.This chapter discusses some of the hidden costs associated with free solutions and clarifies what comes from those solutions.This chapter also addresses the fact that in most cases, an apples-to-apples comparison between a free package and a commercial product is not feasible.With all of this information, you should be in a good position to propose a solution and back up your choice with some compelling business arguments.

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