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What is a Firewall Rule? | Simple Networking Explanation
A Firewall Rule is like a set of instructions that decides whether network traffic should be allowed or blocked. Firewall rules are based on: IP addresses (source/destination) Ports (like HTTP on port 80, HTTPS on 443) Protocols (TCP, UDP, ICMP) Direction (inbound or outbound traffic) Think of it like a security guard at a gate — checking IDs ...
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