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 ...

Simple steps can make the difference between losing your online accounts or maintaining what is now a precious commodity: Your privacy. Read now Here's how it works: First, DNS is the internet's ...

Five commands that end DNS guesswork for good.

DNS servers are like phonebooks – they help your computer find websites and load them properly. This means that if the DNS server stops responding, you won't be able to access any website or app.

The makers of BIND, the Internet’s most widely used software for resolving domain names, are warning of two vulnerabilities that allow attackers to poison entire caches of results and send users to ...