While it’s out of favor these days, they were the staple of network protection in old computers.Ī packet-filtering firewall operates at a packet level, scanning each incoming packet from the network router. Packet-filtering firewalls are the simplest and least resource-intensive firewall technology out there. A firewall serves as a checkpoint of sorts, carefully controlling the type of communication that’s let in. Verifying the authentication of each connection, hiding the destination IP from hackers, and even scanning the contents of each data packet – firewalls do it all.
What makes it special is its ability to intercept and scan incoming traffic before it enters the internal network, blocking malicious actors from gaining access. Simply put, a firewall is just another network endpoint.
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