This project involves configuring a secure and scalable BIND 9.20 setup on a FreeBSD VPS to act as an authoritative DNS server for multiple domains, with Response Policy Zone (RPZ) integration for advanced threat filtering. This setup will allow you to effectively manage DNS zones while protecting against malicious domains by blocking or redirecting unwanted traffic. 

I’ll begin by assessing your specific requirements for DNS management and security, then prepare and optimize the FreeBSD environment to ensure stability and performance. Once BIND is installed, I’ll configure authoritative zones and set up RPZ policies to provide proactive threat mitigation. Rigorous testing will confirm accurate DNS resolution and full RPZ functionality. 

Upon completion, you’ll receive detailed documentation, ongoing support, and tailored recommendations for scaling, monitoring, and future enhancements. This solution will deliver robust DNS infrastructure with strong security, tailored to meet your needs and future demands.