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The Canonical Ubuntu 16.04 LTS Security Technical Implementation Guide (V2 R3) has 229 STIG checks. New to STIG checklists? Read What is a STIG checklist?, CKL vs CKLB, and STIG vs SCAP benchmark.
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New to STIG checklists? Read What is a STIG checklist? and CKL vs CKLB.
Verify all files and directories on the Ubuntu operating system have a valid owner.
Check the owner of all files and directories with the following command:
# sudo find / -nouser
If any files on the system do not have an assigned owner, this is a finding.
Either remove all files and directories from the system that do not have a valid user, or assign a valid user to all unowned files and directories on the Ubuntu operating system with the "chown" command:
# sudo chown <user> <file>