This ebook explores DNS as both the backbone of the internet and a critical yet often overlooked security control. It explains how DNS works, the differences between recursive and authoritative servers, and why nearly every digital interaction passes through DNS. The ebook details common DNS-based threats, including command-and-control communication, data exfiltration, DDoS attacks, cache poisoning, hijacking, phishing, and typosquatting, linking these technical risks to real financial, operational, and reputational consequences. It demonstrates how proactive DNS filtering mitigates these risks by blocking malicious domains before connections occur, supporting encrypted DNS, and enabling consistent protection for corporate, remote, IoT, and public Wi-Fi environments. The ebook positions DN

Join for free to read