It's Always DNS: The Unfortunate Truth

Matthew Fisher - April 4, 2023

Cover image for article: It's Always DNS: The Unfortunate Truth.
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Learn how to avoid common errors that lead to the infamous "It's always DNS" problem.

DNS may be an unsung hero of networking, but when it fails, it can be a devastating source of major outages. Learn why it's always DNS and how to prevent and resolve DNS-related issues to keep your network running smoothly.

As the saying goes, "It's always DNS."

Despite its critical role in networking, DNS is often overlooked and under-appreciated - that is, until it fails. When DNS fails, it leads to major outages and disruptions that impact businesses and individuals alike. DNS issues are sometimes difficult to spot, but are often easy to resolve once spotted.

Why is it always DNS?

There are several reasons it's always DNS. DNS is a complex system that is susceptible to a range of issues, including misconfigured records and DNS cache poisoning. Additionally, DNS is often overlooked and not given the attention it deserves until something goes wrong. DNS is so fundamental to everything, it's easy to take it for granted and miss critical issues. When DNS issues occur, it can be difficult to determine the root cause.

Another source of DNS issues is DNS security. DNS is a frequent target for hackers who may try to compromise the integrity of DNS records, leading to a range of security issues. DNS security solutions like DNSSEC and DNS over HTTPS can help protect against these threats and ensure the security of your DNS infrastructure.

DNS issues are not just a problem for your business

It's worth noting that DNS issues can impact more than just your organization's internal network. Issues with DNS can impact your customers and partners too. When your services are unavailable, it can lead to potential loss in revenue and damaged relationships. Taking steps to ensure the reliability and security of your DNS infrastructure can help to prevent these issues and keep your business running smoothly.

There are ways to prevent and resolve DNS issues

The good news is there are ways to prevent and resolve DNS-related issues. One important step is to ensure that your DNS records are correctly configured and up-to-date. DNS lookup tools, like those offered by NetworkCalc, are incredibly useful for spotting DNS issues and correcting them. There is also a range of common DNS mistakes to avoid or correct when you find them.

A few tools can help you find and resolve DNS issues easily:

Another important step is to regularly monitor your DNS infrastructure and address any issues as soon as they arise. This can including setting up alerts for DNS failures and unexpected record changes. It can also include implementing DNS failover solutions to ensure that your network can continue to operate in the event of a DNS outage.

DNS is the hero, but often the culprit

DNS is critical infrastructure allowing the Internet to run and devices to communicate. At the same time, it is often the source of major outages and disruptions. By taking steps to ensure the reliability and security of your DNS infrastructure, and utilizing tools to help you monitor and manage DNS, you can minimize the impact of DNS-related issues and keep your network running smoothly.

The next time you experience a networking issue, remember: it's always DNS. But with the right tools and expertise, you can ensure that DNS doesn't have to be a headache.

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