Network Protocols for Security: DNS

In this course, you’ll practice creating network traffic to analyze how DNS queries and responses operate. When you're finished, you'll have a fundamental understanding on how to find anomalies within DNS.

Understanding how network protocols operate is an implied skill required to be successful in cyber security. In this course, Network Protocols for Security: DNS, you’ll learn to analyze DNS network traffic. First, you’ll explore a typical DNS request to understand how queries and responses operate. Next, you’ll modify the local hosts file to see one method where DNS can be taken advantage of. Finally, you’ll analyze a command and control conversation to gain further insight into malicious DNS conversations. When you’re finished with this course, you’ll have the skills and knowledge of DNS needed to find anomalies and malicious activity amongst network traffic.

• Course Overview 0mins
• DNS Queries and Responses 6mins
• Modifying Traffic Flow 4mins
• Detecting DNS C2 5mins