Explore the dark side of DNS in this 40-minute conference talk from CircleCityCon 2017. Delve into DNS resolution processes, key terminology, and common server software. Learn to use Dig and Wireshark for DNS analysis. Examine various DNS-based attacks, including amplification, slow reflection, and data exfiltration. Discover log analysis techniques, including log shipping and Elasticsearch. Investigate malicious activities through DNS query response codes and AD DNS debug data. Gain insights on securing Active Directory DNS and implementing effective DNS debug logging for enhanced network security.