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XCCDF
Guide to the Secure Configuration of Ubuntu 20.04
System Settings
Network Configuration and Firewalls
Uncomplicated Firewall (ufw)
Verify ufw Active
Verify ufw Active
An XCCDF Rule
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Verify ufw Active
Medium Severity
Verify the ufw is enabled on the system with the following command:
# sudo ufw status
If the above command returns the status as "inactive" or any type of error, this is a finding.