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The Ultimate Guide to Understanding DNS Filtering: Why Every Business Needs It

5 minutes read
The Ultimate Guide to Understanding DNS Filtering Photo

DNS filtering is a crucial security solution for businesses, preventing malware, phishing attacks, and spyware from accessing specific websites. Companies set specific web filtering policies to secure their networks, and DNS filters can assess, audit, and filter websites according to these policies.

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What is DNS Filtering?

Domain name refers to website names that are used instead of IP addresses with digit numbers. Each website has its unique IP address for access. However, it is not always easy to remember these digit numbers. This is why we use a domain name system to access particular websites. Domain Name System (DNS) translates domain names into IP addresses so computers can recognize them. DNS grants access to the web servers.

DNS filtering prevents particular websites from being accessed in corporate networks. Companies set specific DNS web filtering policies to determine which websites should be allowed. DNS filtering systems assess, audit, and filter websites according to these policies. In other words, filtering policies and parameters are the company’s responsibility. DNS filtering capabilities do the rest to secure the corporate network.

DNS filtering is a security solution for both individual and corporate users. Malware, phishing attacks, and spyware can be prevented by DNS filtering. If a company can successfully determine the malicious websites, it is more likely for the company to protect users from data breaches and cyber-attacks. DNS filtering vendors offer malicious website filtering to their customers.

The Evolution of DNS Filtering Technologies

DNS technologies have evolved due to the changing interconnected digital landscape. Today’s DNS filtering includes complex filtering policies and capabilities. Content filtering became a vital part of DNS filtering works.

In the beginning, traditional DNS filtering systems were used to secure networks. A traditional DNS filter is able to block particular domain names. It requires companies to make lists and determine specific harmful sites. The DNS system redirects users’s requests or blocks these requests when users try to access malicious websites on the list. However, it is inadequate to avoid new malware attacks and internet threats.

On the other hand, proxy servers have been used for a long time to filter web traffic and prevent users from falling victim to online threats. When it comes to content filtering, proxy servers are quite beneficial. It limits access to unwanted, and time-wasting sites. Due to this reason, corporations have used proxy content filtering to increase employee productivity at their workplace.

The revolutionary part of DNS filtering is that it presents access control, content filtering, and malicious website prevention at the same time. Instead of leveraging several security solutions, companies can protect their networks and users with DNS filtering systems.

Key Benefits of DNS Filtering for Businesses

DNS filtering is a key element of today’s businesses. Regardless of the size of your company, you can benefit from DNS filtering tailored to your business requirements. First of all, DNS filtering boosts performance and improves productivity at the workplace. Companies can prevent their employees from distractions thanks to DNS filtering. Set social media and other non-work-related websites as unauthorized so your employees can not access distracting websites during work times. It is the perfect way to provide time management and increase business quality. You can create an infographic on how DNS filtering benefits your workflow and inform your IT employees on how to manage this process.

More and more businesses are migrating to cloud-based environments. This immigration brings new challenges and problems within. Security solutions should be scalable and flexible to adopt any novelties. The great news is DNS filtering offers high scalability and flexibility to users. Businesses can effortlessly manage DNS filtering systems. Customizable filtering policies are also a plus for businesses of any size. As a manager, you can customize the filtering options according to your specific groups by considering their risk levels and necessities. DNS filtering options provide you with a space to do that.

 

Understanding DNS Filtering vs Traditional Firewalls

Firewalls are security mechanisms that control both incoming and outgoing traffic according to specified rules. They identify and avoid unauthorized data at the network stages. The primary purpose of traditional firewalls is to secure users and devices from malicious attacks and other security risks. Both DNS filtering and traditional firewalls secure internet traffic. However, traditional firewalls prevent amplification attacks and cache poisoning while DNS protection mostly focuses on content filtering. DNS filtering and traditional firewalls have different use cases. DNS filtering protects the user’s devices and users from dangerous websites. Moreover, it provides detailed reporting based on predefined rules.

DNS filtering is implemented through DNS servers and cloud-based DNS services. On the other hand, traditional firewalls operate in network layers, hardware, and software. DNS protection is more suitable for website and internet content control while firewalls are used to avoid unauthorized access and undesirable data traffic.

Use cases and specific requirements are determinative when choosing between DNS filtering and traditional firewalls. If malicious content, web-based threats, and phishing websites are your prior concerns, then you must adopt a DNS filtering system for your business. Furthermore, DNS filtering focuses more on threat intelligence than traditional firewalls. Low latency is another advantage of DNS filtering work.

How DNS Filtering Enhances Cybersecurity Protocols?

Cybersecurity protocols are solutions and tools that protect data, systems, and users from unauthorized access and malicious attacks. DNS blocking prevent access to malicious sites and prevents users from phishing attacks. Accessing malicious websites poses a high risk to businesses. DNS filtering prevents the user’s device from accessing any malicious domains and blocks malicious websites. Consequently, users face fewer risks when they access websites.

A secure web gateway, on the other hand, is possible with DNS filters and machine learning opportunities of DNS filtering services. DNS filtering systems block access to harmful websites and add an extra layer of security to the company’s network safety.

DNS filtering enhances the security posture of companies. It can combat a wide range of online threats in the network. Secure internet access promoted by DNS filtering is another DNS security solution for businesses.

Data loss prevention is also a crucial part of cybersecurity. Each cybersecurity protocol aims to avoid data loss and develop security solutions to enhance data security. Data protection is vital for both legal compliance and company reputation. Any data breach can be concluded as a disaster for companies regardless of their size.

Potential Pitfalls and How to Avoid Them?

DNS filtering provides quality protection. However, it has some pitfalls to avoid underperformance. Over-blocking and under-blocking are one of these problems. DNS filtering policies must be stated in a perfect balance. They must neither be aggressive nor delicate. Some filtering policies can avoid legitimate website access. Thus, users ceased to access without a valid reason. Reviewing and refining filtering policies regularly can solve this problem. Creating a whitelist to determine essential websites is also a good idea to avoid unnecessary blocks. Under-blocking, on the other hand, diminishes the security level of DNS filtering. Inadequate filtering leads to security gaps and data breaches.

Performance and latency issues are common pitfalls of DNS filtering systems. DNS filtering can slow down website access and cause latency. To solve this problem, properly configured and optimized filtering systems are recommended.

Poor knowledge of DNS filtering is another pitfall of DNS filtering. Companies must be sure that their employees understand and embrace DNS filtering and know how to leverage it. Without adequate employee support, DNS filtering can not prevent data breaches or cyber-attacks from the company network.

The Future of DNS Filtering

DNS filtering seems to stay as a security solution for businesses. However, it is inevitable for DNS filtering to change and evolve according to changing trends and requirements. For instance, AI (Artificial Intelligence) came into our lives and started to be used in almost every field of daily life. It is predictable that cybersecurity solutions and DNS filtering will incorporate AI and machine learning algorithms. This cooperation can improve DNS filtering performance and avoid emerging threats.

The growing number of remote and hybrid work models will increase the necessity for DNS filtering systems. Business environments have been evolving, and their cybersecurity requirements too. Companies started to look for more developed and scalable cyber solutions. DNS filtering, due to its flexibility and scalability, can meet the necessities of new security concerns. As corporations become complex and face several security issues, DNS filtering will continue to protect its importance and vitality for the companies.

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