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A DNS Firewall is a shield against scams and malware that attempt to redirect you to malicious websites. DNS is a way to translate DNS addresses into numerical numerical IP addresses in order to access Google’s website. The way a firewall works is quite similar to the way ships enter a busy coastal port: When a boat wants to dock, it requests permission to enter the port. A firewall can consist of software, hardware, or both: A firewall is installed on a computer to regulate traffic through port numbers.
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