The following figure is a schematic diagram of the detection file of the firewall and...

The files obtained by users from website A and website B will be sent to the inspection node for inspection.

When a user visits website B, although the firewall will extract the file and send it to the detection node, the user can still access normally during the detection process

Site B.

After the detection node detects the suspicious file, it not only informs the firewall in the figure of the result, but also informs other network devices connected to it.

Assuming that website A is an unknown website, the administrator cannot detect the traffic file of this website sC