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'''Cache Poisoning''' is the insertion of false data into recursive [[Name Server]], which remember previous lookups.  

'''Cache Poisoning''' is the insertion of false data into a recursive [[Name Server]], which remember previous lookups.  

==Overview==

==Overview==

The attacker sends fake [[DNS]] answers in response to a query and tricks it into thinking the wrong data is correct for a given domain. The server remembers the wrong answer in its cache and provides that wrong answer in future lookups.<ref>[https://www.iana.org/reports/2008/cross-pollination-faq.html Frequently Asked Questions on Cache Poisoning and Cross Pollination, IANA]</ref>

The attacker sends fake [[DNS]] answers in response to a query and tricks it into thinking the wrong data is correct for a given domain. The server remembers the wrong answer in its cache and provides that wrong answer in future lookups.<ref>[https://www.iana.org/reports/2008/cross-pollination-faq.html Frequently Asked Questions on Cache Poisoning and Cross Pollination, IANA]</ref>