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From 123-CBT Computer Based Training
CIW Security Professional Operating System Security

...options for changing file permissions using the umask and chmod commands.
Unit 3: Assessing Security Risks (2 hours)
Identify default settings that create security risks.
Identify types of scans performed for system scanning and footprinting.
Identify keys that compose the registry.
Match registry permissions and their descriptions.
Audit the registry.
Disable
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CIW Security Professional Operating System Security
