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Five commands that end DNS guesswork for good.

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 ...

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 ...

Security experts have disclosed today details about seven vulnerabilities impacting a popular DNS software package that is commonly deployed in networking equipment, such as routers and access points.

If you've found yourself hitting DNS errors or 404 pages in your browser but you know your net connection is working fine, it might be time to flush and restart Windows' DNS cache. The How-To Geek ...

When your company’s internet access, VoIP and email all depend on DNS, you have to ensure your DNS server is protected against DNS spoofing attacks. One solution: DNSSEC. Domain Name System (DNS) is ...

Is it weird to say that DNS is my favorite protocol? Because DNS is my favorite protocol. There's something about the simplicity of UDP packets combined with the power of a service that the entire ...

Millions of devices could be vulnerable to Domain Name System (DNS) cache poisoning and remote code execution attacks due to seven security flaws in dnsmasq, DNS forwarding and caching software ...