packet filtering
[ˈpækɪt ˈfɪltərɪŋ]
noun
filtragem de pacotes
1. A network security technique that examines data packets and allows or blocks them based on predetermined rules, such as source/destination IP addresses, ports, or protocols
Packet filtering is implemented at the network layer to prevent unauthorized access to the internal network.
A filtragem de pacotes é implementada na camada de rede para prevenir acessos não autorizados à rede interna.
2. The process of inspecting incoming and outgoing network traffic and making decisions to permit or deny passage based on configurable security policies
The firewall uses packet filtering to block all traffic from suspicious IP addresses.
O firewall utiliza filtragem de pacotes para bloquear todo o tráfego de endereços IP suspeitos.
Packet filtering is a fundamental concept in cybersecurity globally, with consistent terminology across Brazilian Portuguese and European Portuguese. The term is widely used in IT documentation, networking courses, and corporate security policies in both Brazil and Portugal, reflecting the standardized nature of international network security practices.
Related Idioms & Phrases
set up packet filtering rules
implement packet filtering on a firewall
configure packet filtering policies
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