Crucial Exams

CompTIA Linux+ XK0-006 (V8) Practice Question

Your organization's security baseline mandates using the pam_pwhistory module (not pam_unix) to block password recycling. On a Rocky Linux 9 server that relies only on local accounts, you must guarantee that every user - including root - cannot reuse any of their previous eight passwords. While editing /etc/pam.d/system-auth, which single PAM line, placed immediately after the existing pam_pwquality.so entry, will meet this requirement?

  • password required pam_pwhistory.so use_authtok remember=8 enforce_for_root

  • password required pam_unix.so use_authtok remember=8

  • password requisite pam_pwquality.so enforce_for_root retry=3

  • password sufficient pam_pwhistory.so use_authtok remember=8

CompTIA Linux+ XK0-006 (V8)
Security
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