• Online, Self-Paced
Course Description

In this course, you'll explore methods for controlling file system and command execution access. You'll also discover firewall rules and how they're enabled using the OpenBSD PF tool.

Learning Objectives

Unix Permissions

  • start the course
  • describe how Unix file system permissions work
  • use chmod to set file system permissions
  • describe how ACLs provide added file system security
  • use setfacl to assign ACL file system permissions
  • explain the purpose of Unix special permission bits
  • use chmod to set special permission bits
  • identify the importance of not logging in as root
  • enable standard users to run privileged commands

Unix Firewall

  • describe how firewall solutions protect hosts
  • protect a Unix host from unwanted network traffic
  • ensure configured firewall rules are in effect

Practice: File and Network Security

  • configure Unix file system permissions, command execution, and firewall settings

Framework Connections

The materials within this course focus on the Knowledge Skills and Abilities (KSAs) identified within the Specialty Areas listed below. Click to view Specialty Area details within the interactive National Cybersecurity Workforce Framework.

Feedback

If you would like to provide feedback for this course, please e-mail the NICCS SO at NICCS@hq.dhs.gov.