(Some concepts of Juniper firewall security zone (SecurityZone): Juniper firewall adds a new concept of security zone (SecurityZone), a security zone is a logical structure, is a collection of multiple physical interfaces in the same attribute zone. When communicating with each other in different security zones, it is necessary to pass the pre-defined policy detection; when communicating in the same security zone, it is allowed to fail the policy detection by default, and the policy detection can also be forced after configuration. to enhance security. The appearance of the concept of security zone makes the configuration of the firewall more flexible and combined with the existing network structure.)
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