If you are not able to connect to a particular site and its IP addresses is not resolving properly, it could be a problem with the DNS servers that you are connecting to or an incorrect DNS entry ...

Jack Wallen shows you how to flush the DNS cache on your Ubuntu Servers to avoid DNS-released networking issues. Sometimes a network connection doesn’t seem to function how we expect them to. And it ...

Researchers from Tsinghua University and the University of California have identified a new method that can be used to conduct DNS cache poisoning attacks. The new discovery revives a 2008 bug that ...

Make your home network more secure and much faster.

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There has been a long history of attacks on the DNS ranging from brute-force denial-of-service attacks to targeted attacks requiring specialized software. In July 2008 a new DNS cache-poisoning attack ...

Simply put, Domain Name System (DNS) is the phone book of the internet. It’s the system that converts website domain names (hostnames) into numerical values (IP address) so they can be found and ...