Data center and cloud migrations often require changing IP addresses of your servers and application end points. These changes require careful planning and precise execution in order to minimize downtime. Typically, this is executed by manually searching your DNS server’s configuration for each server that is migrating.

The Internet is a vast network of servers and devices connecting people worldwide. It allows for near-instant data communication between machines, which is presented in a readable format for the end-user. From a human perspective, it's a simple case of typing the URL of your desired website and pressing enter. Of course, computers talk to one another in their own numerical language, using lengthy IP addresses to refer to domains instead of URLs.

This article helps you understand DNS prefetching, one type of resource hint, including what they are, why and how to use them, and best practices for auditing and scaling them.

Whether you are looking to research, switch, or add additional DNS providers for redundancy, it's important to consider several factors and ask the right questions that will determine the provider that best suits your organization's needs.

Whenever an online service goes down, you're likely to hear three words: "it was DNS!" Blaming DNS might be a running joke among network admins and engineers, but it's one rooted in experience. DNS problems are known for causing massive, Internet-wide outages such as the 2021 Akamai outage that temporarily made the websites for Delta Air Lines, American Express, Airbnb, and others unreachable.

Migrating your DNS to a cloud provider like Amazon’s Route53 service can be a daunting task. Thankfully, with dns-tools you can test your DNS records before and after the migration to ensure that everything made it across in one-piece. This is the three steps we follow when migrating to Route 53: Follow along below and in just 10 minutes you’ll know if everything will migrate smoothly for you.

As a software engineer, I admit I am not the best at networking. Can’t connect to your app for some reason, one going joke is to “always blame DNS” e.g the Domain Name System. My personal DNS experience is usually editing a few records for my personal blog and connecting a few tools and that is it. Thanks to distributed systems, had to learn all about SRV records and some more DNS concepts.

While MSPs have been making significant investments in security and offering services, it is a challenge to keep up with the frequency and evolving sophistication of today’s cybersecurity threats. Defense in Depth (DiD) is the foundation on which most MSPs have built a layered security approach for dealing with them.