Use an External Dynamic List in Policy

An external dynamic list (formerly called dynamic block list) is a text file that you or another source hosts on an external web server so that the firewall can import objects—IP addresses, URLs, domains—to enforce policy on the entries in the list. As the list is updated, the firewall dynamically imports the list at the configured interval and enforces policy without the need to make a configuration change or a commit on the firewall.

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