It only accepts the connections that are configured to accept by the configured rules. How Does Firewall Works?Įvery firewall has some rule to analyze the network traffic. The firewall of a computer device or network acts as a gatekeeper, monitors access to the operating system to avoid unwanted and unrecognized traffic. Also, it helps a user to keep away malicious software or program (virus, malware, Trojans, worms, ransomware, spyware) from infecting a computer or device.
A firewall is a kind of security device that protects a network system by filtering traffic and blocking unauthorized access.
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