Why Does Secure DNS matter?

The Domain Name System (DNS) is one of the most critical parts of an IT infrastructure. Every online services relies upon its proper operation. Without a secure DNS, users are unable to access email, customer relationship management (CRM) applications, and different services. If DNS is compromised, users may lose their data but DNS services can be secured with the correct configuration and sending of fitting solutions.

There are a couple of things more critical to the activity of the web than the DNS. Internet users depend on a DNS to identify the names of websites they need to visit, but browsers communicate with websites by means of their IP addresses. These addresses are shown as a progression of numbers separated by dots. A secure DNS is essential because it links the domain name to the IP. And while DNS is invaluable to the Internet community, it isn't without vulnerability. When it was created, the Internet was significantly smaller and safer place, so there was little security in mind. As the Internet has developed, malicious users have discovered weaknesses in the DNS system. Cybercriminals can abuse these weaknesses and are capable of creating false DNS records. These fake records can trick users into visiting fake websites, downloading malicious software, or worse. If a hacker can compromise the DNS, he can he can bring down a whole organization’s internet presence.

A secure DNS is the critical link to the IT infrastructure of an organization, and if the DNS is not secure, nothing is.

Companies should protect the DNS with genuinely secure DNS servers. Most of these DNS servers are purpose-built for security, immune to malware, and self-protecting against DDoS attacks. A secure DNS server sits alone, unprotected on the internet – and can continue running non-stop. A secure DNS is also cost-effective, no downtime for the network, and no requirement for costly security devices.

DNS Security is based on Domain Name System Security Extensions (DNSSEC), which is a specification to maintain a secure DNS. By the use the digital signatures, it gives the DNS data integrity and origin authentication to the DNS customers.

You can check your own particular DNS settings by going to Control Panel > Network & Internet > Network Connections > right click on your present Internet connection > click on Internet Protocol Version 4 (TCP/IPv4) > and afterward click on Properties.

There are 3 entities which can set the DNS:

  • Your Internet Service Provider
  • Google Public DNS
  • A cybersecurity solution that provides DNS-based traffic filtering as a feature of its protection suite.

When you consider DNS, picture a server that analyzes your requests to see websites or download media. Since the way the DNS works is very complex, cybercriminals will try constantly to attack it at each stage.

Malicious attackers can hack DNS settings in two ways:

  • By compromising the way DNS works
  • By abusing security vulnerabilities present on the servers that run the DNS services.

In both cases, the consequences for the victim/user are bound to be high-impact. Without a secure DNS, you are leaving your organization vulnerable to attack. It is very important to secure DNS infrastructure properly. The DNS protocol is old and new techniques are always being produced to attack it. Implementation of modern technologies to monitor DNS accessibility and integrity is important to build up good response processes. Likewise, application of vulnerability management, patch management, and service resiliency is part of this new procedure.

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