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A Linux administrator needs to harden a system and guarantee that the Postfix service will not run, even after a restart or system upgrade. Which of the following commands allows the administrator t

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Question 371

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A Linux administrator needs to harden a system and guarantee that the Postfix service will not run, even after a restart or system upgrade. Which of the following commands allows the administrator to fulfill the requirement?

A.

systemctl mask postfix.service

B.

systemctl disable postfix.service

C.

systemctl stop postfix.service

D.

systemctl -n restart postfix.service

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