DNS Firewall is a security layer that monitors DNS query traffic and blocks access to malicious domains. Unlike traditional firewalls, DNS Firewall operates at the application layer and performs domain-based filtering to block phishing, malware, and botnet traffic at the source.
How Does It Work?
DNS Firewall works by intercepting the DNS resolution process. When a user or device attempts to access a domain flagged as malicious, the DNS Firewall blocks the query or redirects it to a safe page.
Why Is It Important?
Today, over 90% of cyber attacks use DNS infrastructure. Malware command-and-control servers, phishing sites, and data exfiltration attempts — they all start with DNS queries. DNS Firewall detects and blocks these threats at the first step, protecting your network with a layered security approach.