The update schedule ext-url-sdb enable command enables scheduled update of the external malicious URL signature database.
The undo update schedule ext-url-sdb enable command disables scheduled update of the external malicious URL signature database.
By default, scheduled update of the external malicious URL signature database is enabled.
URLs can be filtered based on the external malicious URL list. The external dynamic malicious URL list is a text file of malicious URLs released by external official websites. By updating the external malicious URL signature database, the FW downloads the latest external dynamic malicious URL list from the external official websites and loads it to its cache. To enable the device to identify and block the latest malicious URLs in a timely manner, you need to upgrade the external malicious URL signature database from the external official websites to update the external malicious URL signature database in the device cache. This command is used to periodically update the external malicious URL signature database.