Explore the implementation of 0x20 DNS encoding to enhance DNS cache poisoning resistance in this informative 26-minute video. Learn about the fundamentals of DNS, understand the concept of DNS cache poisoning, and discover how randomizing letter casing in domain names can improve security. Dive into the ASCII 0x20 casing technique, its encryption-based randomization, and potential limitations. Gain insights into this security measure originally proposed by researchers from Georgia Institute of Technology and now being implemented by Google to strengthen DNS query protection.