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The DNS suffers from poisoning if anyone feeds wrong data into it.įor example, any hacker would hack your device and change the IP address of your most visited website.
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Then DNS server gets the IP address of, it understands which site you need to view, and then displays that site in your browser. The router has DNS addresses so it then forwards this query to the DNS server and asks for the IP address. When you type a URL say in the browser, the browser heads over to the router for its IP address. It works behind the curtain when anyone requests a site. In the same way, DNS eliminates the need for memorizing the IP addresses of websites. The phonebook eliminates the need for memorizing phone numbers. The internet is dependent on the DNS for maintaining the index of websites and their IP addresses too. When we wish to visit any website, then we don’t need to memorize it’s IP address, DNS does it all for us. The working of DNS server is quite impressive. This is because it removes the DNS lookup of the websites that are accessed recently. In this way, it increases the speed of internet browsing.
#ERASE INTERNET CACHE FOR ONLY ONE SITE MAC MAC#
Therefore, some OS like Windows and MAC have by default enabled the option of DNS caching. It is a temporary storage area in your operating system that stores files related to the websites you most often visit online.Īs we know, DNS maintains the IP addresses of websites.ĭNS is not updated so fast. If a website has moved server, then you must delete its old record to avoid any problem in connection. Not only above things lead you to reset the cache, but there may be some other reasons also for clearing this record. In this way, all information will be removed, and the new IP addresses of the website will be stored again when the user visits them. To solve the cache poisoning problem, we erase or reset it. For this reason, there are many of them online, I have enlisted some popular ones here.