So, when you speed up your DNS lookups, you'll get faster internet performance. There have been fast DNS services for years to help you. My favorites are Cisco OpenDNS and Google Public DNS.

MXToolbox SPF Checker: MXToolbox is a reliable solution for real-time SPF record evaluation, error detection, and DNS lookup ...

A DNS failure occurs when a browser cannot convert a domain name to an IP address. Learn some common causes and how to troubleshoot.

First, most (but not all) DNS servers sequentially assign the ports they use in making DNS queries. That is, they start with 58363, then use 58364, and so on, incrementing by one.

Once you have your system's DNS servers listed, enter them into the FBI's DNS checker Web page to see if they are identified as part of the rogue DNS network. In addition to manually looking up ...

Appleu2019s security update on July 31st may have patched a widespread DNS flaw on Mac servers, but it hasnu2019t closed the debate on their handling of it, nor the risk to Mac OS X users.

Facebook's DNS or Domain Name System has been the reason why it was "down" or inaccessible, including its other apps and services, including that of Messenger, WhatsApp, Oculus, and more. The big ...

You can find out if your connection is safe from this flaw by using a DNS checker. There are three that I know of. Kaminsky has one on his blog, there's another at DNS-OARC and one at the lower ...

It's worth remembering that each level of CNAME necessitates another DNS lookup—in this case, a remote machine that asked to resolve www.example.tld would be told "please look up example.tld. in ...

The malware scam DNSChanger that has affected numerous computer systems, including Macs, has been at least partly dismantled by the FBI's Operation Ghost Click program.

It’s been a few weeks since [Dan Kaminsky] announced the nature of the DNS vulnerability and allowed 30 days of non-disclosure for patches to be applied before details of the exploit went pub… ...