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DNS spoofing, also referred to as DNS cache poisoning, is a form of computer security hacking in which corrupt Domain Name System data is introduced into the DNS resolver's cache, causing the name server to return an incorrect result record, e.g. an IP address. This results in traffic being diverted to any computer that the attacker chooses.
DNS hijacking, DNS poisoning, or DNS redirection is the practice of subverting the resolution of Domain Name System (DNS) queries. [1] This can be achieved by malware that overrides a computer's TCP/IP configuration to point at a rogue DNS server under the control of an attacker, or through modifying the behaviour of a trusted DNS server so that it does not comply with internet standards.
A browser's cache stores temporary website files which allows the site to load faster in future sessions. This data will be recreated every time you visit the webpage, though at times it can become corrupted. Clearing the cache deletes these files and fixes problems like outdated pages, websites freezing, and pages not loading or being ...
A web browser's cache stores temporary instances of web pages, allowing them to load faster next time you visit. Clearing your browser's cache is recommended if you're experiencing things like pages freezing, not loading, or being unresponsive. 1. Launch AOL Desktop Gold. 2. Sign in with your username and password. 3.
If an authoritative nameserver returns a negative response, indicating that a name does not exist, this is cached. The negative response may be perceived as a failure at the application level; however, to the nameserver caching it, it is not a failure. The cache times for negative and positive caching may be tuned independently.
If you've cleared the cache in your web browser, but are still experiencing issues, you may need to restore its original settings. This can remove adware, get rid of extensions you didn't install, and improve overall performance.
With the DNS Client service running: If the "hosts" file contains multiple lines denoting multiple answers for a given lookup, all of the answers in the cache will be returned. Without the DNS Client service running: If the "hosts" file contains multiple lines denoting multiple answers for a given lookup, only the first answer found will be ...
The DNS resolver will almost invariably have a cache (see above) containing recent lookups. If the cache can provide the answer to the request, the resolver will return the value in the cache to the program that made the request. If the cache does not contain the answer, the resolver will send the request to one or more designated DNS servers.