DNS Based Content Filtering: Managing And Protecting Web Usage

DNS based content filtering is another term for a cloud-based Web filter. Rather than use software installations to shield systems from malware and ransomware, DNS based content filtering solution gives a choice to organizations and managed service providers that do not require a high level of maintenance on network resources amid the filtering process.

The term “DNS based content filtering” gets its name from the way the filtering solution is implemented. Organizations and MSPs just need to divert their DNS server settings towards the service provider´s server and the filtering is ready to go. DNS based content filtering automatically configures itself once executed and is perfect for every kind of operating system.

Once configured, network administrators can apply user policies by means of a web-based management portal. The portal allows network administrators to screen Internet activity in real time and pull reports to help with risk assessments and recognize unusual port activity.

DNS Content Filtering

DNS based content filtering is just as effective as hardware-based or software-based Web filtering at keeping users from visiting risky or disallowed sites. Furthermore, DNS based content filtering is a one-time setup solution for filtering the Web with the additional advantage of enhanced network performance.

It is also important to look at one of the most essential elements of DNS based content filtering, the SSL inspection. During the SSL inspection, a DNS based content filtering solution decrypts, reads, and re-encodes the content of encrypted websites to guarantee they are free from malware and their content complies with user policies.

The issue with SSL inspection is that its procedure puts a strain on CPUs and, at times of peak web activity, Web speeds can suffer. It is also possible that some web-based applications, like email, will be briefly inaccessible because of the SSL inspection process eating up network resources.

Though a conceivable answer to this issue is whitelisting, allowing trusted websites to bypass the filtering procedure to diminish the strain on CPUs, it has its dangers and it can be a time-consuming task for network administrators. There is no guarantee a trusted website will remain without malware. An update to the trusted website could uncover a vulnerability that is abused by hackers.

A DNS based content filtering solution defeats this issue and enhances network performance by conducting the SSL inspection in the cloud. The DNS based content filtering solution successfully places the strain on the service provider´s CPUs as opposed to the organization´s CPUs. The filtered Internet service is delivered to network users with undetectable latency and with no impact on business-critical applications.

Comodo, the worldwide leader in cybersecurity solutions, provides complete DNS based content filtering solutions solving the most advanced known and unknown malware threats. One of its cloud-delivered DNS-based solution, the Comodo Dome, gives the best free Internet filter and comprehensive domain filtering to cover security and category based rules. Among DNS based content filtering solutions, Comodo Dome is a type that you can easily integrate into your system and begin securing it against malicious domains. Comodo Dome lets you create location and agent-based security rules for blocking malicious sites, and authorize company policies utilizing 70 different URL categories covering more than 15 million domains.

Comodo Dome serves as the first line of defense to protect organizations’ data from web-borne threats and avoids the need for on-premise web gateway hardware. Having a powerful DNS based content filtering solution today, like Comodo Dome, that adjusts itself to your internet monitoring software will ensure that you are shielded from a security and legal stance and will enhance the productivity of your workforce.

To discover more about DNS based content filtering solutions, or to ask for a free trial, get in touch with Comodo today, and you could be ensuring your network against malware and ransomware with a DNS based content filtering solution within seconds.