To understand why DNS failures can be so disruptive, it's helpful to know how the Domain Name System is constructed. The internet contains over 378 million registered domain names, far too many for a ...

OK so we have a 2003 AD domain called "xyz.com" and also have an externally hosted website "www.xyz.com" and everything is working fine. The problem is some management don't want to have to type ...

Because of its universality, DNS has become a natural enforcement layer for network policies, whether for security, ...

I'm having DNS issues with two of our websites. The project is eliminating our hosting provider and bringing everything in-house. I'm tasked with reconfiguring the nameservers for those domains and ...

They also noticed that it was devices using Cloudflare's popular DNS server at 1.1.1.1 that crashed; this turned out to be ...

According to CISA, most cyberattacks, including ransomware and BEC, start with phishing. The losses companies are experiencing due to ransomware are exceeding billions annually. In response, ...

I don't typically delve into technical issues in this column, but this month I'm going to take a shallow dive because there's an important issue that I think government CIOs, especially state CIOs, ...

The Linux host command can retrieve a lot of useful information from the domain name service, but has a lot of options that you need to understand to get started. The host command on Linux systems can ...

Domain Name System (DNS) servers translate human readable host or domain names to numeric IP addresses. Drexel IT Networking manages domain name servers used by the university. At start-up time, most ...