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Developing a Valid DNS Response

Explore how to create valid DNS response packets using Python Scapy. Understand DNS packet fields and how to modify request packets to generate legitimate application-layer replies. This lesson helps you build functional DNS responses essential for servers and honeypots.

Creating application-layer responses to requests

In a server or honeypot, some response packets will stop at the TCP layer. For example, the TCP handshake’s SYN/ACK packet carries no data.

However, a server or honeypot likely needs to be able to generate legitimate responses to requests at the application layer. For example, requests for an IP address via DNS or a web page via HTTP ...