Most corporate firewalls allow and DNS (port 53) . Why? Because without web traffic, the internet is useless. Without DNS, nobody can find Google.
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Free tool: Honeyd , CupOfString
Firewalls: These act as the gatekeepers of the network, filtering incoming and outgoing traffic based on predefined security rules. They can be packet-filtering, stateful inspection, or application-level gateways. the internet is useless. Without DNS
Courses titled " Ethical Hacking: Evading IDS, Firewalls, and Honeypots Most corporate firewalls allow and DNS (port 53)