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The Practice of Network Security Monitoring by Richard Bejtlich

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Chapter 5. SO Platform Housekeeping

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In Chapter 3 and Chapter 4, we built stand-alone, server, and sensor SO platforms. All of these platforms are Linux systems that require a certain amount of care and housekeeping. This chapter explains key tasks common to all three systems. These administrative duties include keeping software up-to-date, limiting network access to promote security, and managing system storage. By following the recommendations in this chapter, you’ll keep your SO platforms running smoothly while providing vital data to NSM analysts.

Keeping SO Up-to-Date

All NSM platforms run code that may need to be updated periodically, and SO ...

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