Packet Capture
Packet capture is a network analysis technique that involves intercepting and logging data packets as they travel across a network. It allows developers and network administrators to inspect the raw data transmitted between devices, enabling detailed troubleshooting, security analysis, and performance monitoring. Tools like Wireshark, tcpdump, and Microsoft Message Analyzer are commonly used to capture and analyze these packets.
Developers should learn packet capture for debugging network-related issues in applications, such as API failures, latency problems, or protocol errors. It is essential for security professionals to detect malicious traffic, analyze attacks, and ensure compliance with network policies. Use cases include monitoring web traffic, analyzing VoIP calls, and investigating data breaches.