What is Packet Capture?
Packet capture, also known as network sniffing or packet sniffing, is a method of intercepting and logging the data packets that are transmitted over a network. Packet capture can be used for a variety of purposes, including network performance monitoring, debugging network issues, security analysis, and network forensics.
Packet capture involves using specialized software or hardware to intercept and record the data packets that are transmitted over a network. The packets are typically captured and stored in a file for later analysis. Packet capture tools can be configured to capture all packets transmitted over a network, or they can be configured to capture only certain types of packets based on certain criteria, such as the source or destination of the packet or the protocol being used.
Packet capture can be performed at various points in a network, such as at a network hub or switch, on a network interface card (NIC) of a device connected to the network, or on a network tap or span port. Packet capture can be performed on both wired and wireless networks.
Packet capture is a useful tool for troubleshooting and analyzing network performance and issues, as well as for detecting and investigating security breaches. However, it can also be used for malicious purposes, such as intercepting sensitive data or spying on network traffic, so it is important to use packet capture tools responsibly and in accordance with relevant laws and regulations.
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