A Linux administrator is removing non-permanent rules from the system firewall. Which of the following commands will allow the administrator to achieve this goal in the safest way possible?
D. firewall-cmd --complete-reload
Safely removes all non-permanent (runtime) firewall rules
Fully reloads the firewall configuration from permanent settings
Safest way to clear temporary rules
firewall-cmd --runtime-to-permanent sets the current rules to permanent, it doesn't remove non-permanent rules. --reload will reload the firewall config and remove any non-persistent rules that were added during the current session.
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