abundancypartners.co.uk DNS DNSSEC – Purpose & Benefits

DNSSEC – Purpose & Benefits

Introduction to DNSSEC: Definition & Overview

DNSSEC, or Domain Name System Security Extensions, is an Internet security protocol designed to protect the response received from a domain name system query. It is composed of a set of protocols and extensions which protect the integrity, authenticity, and availability of the data returned by a DNS server. DNSSEC requires that before a server returns a response, it first checks that the response’s associated signature is valid and that the response has been signed by the server responsible for the DNS zone. By doing so, it ensures the integrity of the response and eliminates the possibility of malicious third-party interference. Additionally, Domain Name System Security Extensions can also be used to authenticate responses, allowing for the verifiable validation of the originator of the response. In summary, it is an important protocol that ensures the validity and secure transfer of DNS activity.

What is DS record and why do you need it?

5 Benefits of Using DNSSEC

  1. DNSSEC delivers improved security for domain activities, hindering malicious third-party interference or DNS hijacking. 
  2. It provides authentication for responses, allowing for greater trust and confirmation of DNS queries. 
  3. DNSSEC enhances DNS against potential vulnerabilities, with DNSSEC offering an extra layer of security on top of established frameworks.
  4. Domain Name System Security Extensions can be utilized to protect against DoS (denial of service) and DDoS (distributed denial of service) attacks, since responses will be rapidly validated and authenticated. 
  5. DNSSEC also thwarts cache poisoning, which is a common attack against DNS where malicious actors make an effort to direct users to fake sites.

Deployment Strategies & Recommendations on Implementation

Effective deployment of DNSSEC requires careful consideration and implementation. Organizations should begin by making sure they have the best DNS system in place before implementing Domain Name System Security Extensions. Once their DNS system is up and running, organizations should consider whether they plan to have their own in-house DNS system or outsource to a managed DNS provider. Both solutions have pros and cons, and it’s important to weigh both options before making a decision. 

Next, organizations must consider whether they have the in-house technical knowledge and resources to perform the DNSSEC implementation. If they do, they will need to apply an appropriate set of DNS security settings to secure their DNS system. Alternatively, organizations may opt to use a managed Domain Name System Security Extensions service provider, who can tailor security settings and configurations to the specific needs of an organization. 

Finally, organizations should ensure that the DNSSEC software implementation is well documented and regularly updated. Proper documentation is critical to properly maintaining the integrity of DNS and DNSSEC.


In conclusion, DNSSEC is a must-have protocol for organizations that require secure domain activity. It offers an extra layer of security to protect against malicious attacks and cache poisoning, as well as providing verifiable authentication for DNS responses. Implementing Domain Name System Security Extensions requires careful planning and consideration, but the rewards are well worth the effort.

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