DNS Firewall
A DNS firewall checks every domain request before the page loads. Known malicious, phishing and malware domains are blocked for the whole network at once, with no software installed on individual devices. The solution is NanoFirewall, which we roll out and maintain as an AST partner.
In partnership with AST
NanoFirewall is developed by Advanced Security Technologies (AST). As an official partner, we roll it out, set the rules and review the reports for our clients.
What NanoFirewall does
Blocking at the DNS level
A malicious domain is blocked at the moment of the DNS query, so content from it never loads.
No slowdown
A DNS query takes milliseconds, and filtering adds next to nothing. Staff notice no difference in speed.
No installation on devices
Protection works at the network level. It also covers devices you cannot install anything on: printers, cameras, guests' phones.
Phishing defence
Blocks known phishing sites before an employee enters a password. Works even when the email got past the filter.
Malware Domain Filtering
Continuously updated lists block command-and-control servers, malware distribution and botnet infrastructure.
Content Filtering
Rules by website category, for the whole network or specific groups, according to company policy.
Reports
Overview of DNS queries, blocked threats and activity per device. You see what is really happening in the network.
Compliance Support
A record of DNS queries and rules you can show, useful for internal audits and regulatory requirements.
Easy Integration
Works with your existing network equipment, whether we maintain it or you bring your own. Rollout is a DNS settings change, with no hardware replacement.
Frequently Asked Questions
What is a DNS firewall and how is it different from a traditional firewall?
A traditional firewall inspects network packets and controls traffic based on IP addresses and ports. A DNS firewall works at the domain name resolution level, it blocks access to malicious websites by preventing your devices from resolving dangerous domain names. Both complement each other for layered security.
Does DNS firewall slow down internet speed?
No. DNS resolution takes milliseconds, and filtering adds negligible overhead. Users notice no difference in speed.
Can I customize which domains are blocked?
Yes. NanoFirewall supports custom allow and block lists, category-based filtering, and policy-based rules. You can tailor the protection to match your organization's specific needs and compliance requirements.
Related services
Services clients most often combine with this one, individually or under one contract with a fixed monthly fee.
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