Quad9 is a high-performance, threat-blocking, and privacy-focused public DNS resolver, directly connected to CNX for optimal efficiency. It can act as a replacement for your recursive DNS resolver or as a forwarding target for your ISP's resolvers, providing a critical layer of protection against modern threats.
Why Use Quad9?
- Threat Intelligence: Quad9 integrates multiple commercial and publicly available threat intelligence feeds. These feeds are selected based on their proven capability to identify exploits, malware, ransomware, spyware, and other harmful sites.
- Privacy Safeguards: Quad9 is designed with privacy in mind, ensuring no personal data is collected or stored from its users.
- Ease of Integration: Quad9 can be easily configured as a forwarder in your existing DNS setup, offering seamless adoption.
How to Integrate Quad9 into Your Setup
Integrating Quad9 into your network is straightforward. Below are example configurations for common DNS resolvers:
Using PowerDNS:
# setup quad9 as forwarder
# Secured: Malware blocking, DNSSEC Validation,
forward-zones=.=tls://9.9.9.9
Using BIND:
// DNS forwarder (no support for DoT)
// ISP can use stunnel for DoT
options {
forwarders { 9.9.9.9 port 53; };
forward only;
};
For ISPs requiring support for DNS-over-TLS (DoT), tools such as stunnel can be implemented to secure communication.
