September 23, 2021, Network Security—Updates to domain filtering to facilitate PCI
compliance: To comply with the PCI requirement for restricting outbound traffic, domain
filtering on Network Security appliances beginning with version 2021.9.0.11188 will
only enforce policies in the outbound direction, egress to the internet. For appliances
running earlier software versions, you can still configure inbound filtering policies.
Learn more.
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