What Is Dns Cache Poisoning?
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DNS cache poisoning is a technique used by attackers to corrupt a DNS server’s cache of resource records, so that the server returns an incorrect result to a user’s query. This incorrect result could be a malicious IP address, which can then be used by the attacker to redirect users to a malicious website or launch a phishing attack. DNS cache poisoning can have a negative impact on the availability and security of a network.