WARNING: AllowZoneDrifting is enabled. This is considered an insecure configuration option. It will be removed in a future release.

hoodedvul

Full Message: WARNING: AllowZoneDrifting is enabled. This is considered an insecure configuration option. It will be removed in a future release. Please consider disabling it now.

Action Performed:

$ systemctl status firewalld -l --no-pager
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...
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Jul 02 08:40:13 nextor firewalld[898]: WARNING: AllowZoneDrifting is enabled. This is considered an insecure configuration option. It will be removed in a future release. Please consider disabling it now.

Fix/Solution:
Edit /etc/firewalld/firewalld.conf

Change
AllowZoneDrifting=yes to AllowZoneDrifting=no

Reload the service.

$ sudo firewall-cmd --reload