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