What is a DNS Firewall?

A DNS firewall is a security tool that helps to protect networks and devices from resolving DNS queries that would results in a threat or enable an web-based attack on the device. A DNS firewall works by analyzing DNS (Domain Name System) traffic and identifying requests that match patterns or rules associated with malicious activity. If a request is flagged by the DNS firewall, it will be blocked and prevented from reaching its destination. This can help to protect against a wide range of threats, including malware, phishing attacks, and other types of cyber attacks.

One of the key benefits of a DNS firewall is that it operates at the DNS layer, which is a key point of vulnerability for many networks. By monitoring and blocking malicious DNS traffic, a DNS firewall can help to prevent attacks before they can do harm. This can be especially important for businesses and organizations that rely on their networks to conduct sensitive transactions or handle sensitive data.

In addition to providing protection against cyber threats, a DNS firewall can also help to improve the overall performance and reliability of a network. By blocking unnecessary or unwanted traffic, a DNS firewall can help to free up bandwidth and resources, which can lead to faster and more efficient network performance.

Different types of DNS firewalls

• On-premises DNS firewalls: These are installed and managed on the premises of an organization, typically as a hardware appliance or virtual machine. They require VPN connectivity for remote endpoints to be protected.
• Managed DNS firewalls: These are similar to cloud-based DNS firewalls, but are managed by a team of experts who handle all configuration and maintenance tasks on behalf of the user.
• Client-based DNS firewalls: These are installed on individual client devices, such as laptops or smartphones, and are used to protect those devices from malicious DNS traffic. Stand alone clients solutions do not meet the needs of a distributed team or workforce.
• Cloud-based DNS firewalls: Like Securd, these are hosted and managed by a third-party provider in the cloud, and can be accessed and configured via a web-based interface.
• Client-Cloud DNS firewalls: Like Securd, these combine elements of client and cloud-based DNS firewalls, allowing organizations to choose the best deployment option for their needs.

Factors to consider when choosing a DNS firewall

• Network size and complexity: Consider the size and complexity of your network when selecting a DNS firewall. Larger and more complex networks may require more advanced or scalable solutions like Cloud-based DNS or Client-Cloud DNS.
• Security needs: Determine your security needs and requirements. This will help you to select a DNS firewall that provides the level of protection you need. In most cases, Client-Cloud DNS firewalls offer the most security features.
• Deployment options: Consider the different deployment options available, such as on-premises, cloud-based, or hybrid solutions. Choose the option that best fits your organization's needs and resources. In most cases, Client-Cloud DNS firewalls are the most flexible DNS firewall implementations.
• Ease of use: Look for a DNS firewall that is easy to set up and manage. This will help to ensure that you can get the most out of your security solution. Such as Securd, management of the DNS firewall is performed through a very simple web-based UI.
• Cost: Consider the cost of the DNS firewall, including any ongoing maintenance or subscription fees. Be sure to choose a solution that fits within your budget. Usage based pricing is the most economical. With so many devices on a business network that require very small amount of DNS queries, you typically overpay paying a user-seat license.

Ultimately, the right DNS firewall for your organization will depend on your specific needs and requirements. However, Securd provides the most cost-effective combination of pricing while delivering the most hardened DNS firewall option in the market.