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With the rise of the Internet and the increasing interconnectedness of computers, security is a critical part of Linux administration. This course covers auditing, passwords and user limits. It also covers port scanning and hardening a host by removing unused services. Finally it covers the role of TCP wrappers in host security. This course is part of a series that prepares the learner for CompTIA Linux+ exam LX0-102 and Linux Professional Institute (LPI) LPIC-1 Junior Level Administrator exam 102.

Learning Objectives
  • Describe the considerations involved in configuring file access permissions
  • Describe how to secure files and audits
  • Determine what commands can be run using sudo
  • Describe the key features of a strong password policy
  • Recognize how to use PAM to set limits on the system resources users can obtain
  • Use the Linux password file to manage access
  • Recognize how to enable shadowing
  • Run commands as a different account user
  • Use Linux password features
  • Discover open ports on a system
  • Describe how to deal with unused servers
  • Identify the primary function of TCP wrappers
  • Recognize the options for configuring access control files
  • Discover open ports and unused servers on a system
  • Describe how TCP wrappers are used
  • Audience

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