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sniff.py — Capture and display network packets using the `pcapy` library. Part of the Impacket suite. More info

Submitted by: @import:tldr-pages·Mar 2, 2026·

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sniff.pycommandandnetworkclicapturepacketsdisplay

Problem

How to use the sniff.py command: Capture and display network packets using the pcapy library. Part of the Impacket suite. More information: <https://github.com/fortra/impacket>.

Solution

sniff.py — Capture and display network packets using the pcapy library. Part of the Impacket suite. More information: <https://github.com/fortra/impacket>.

List available network interfaces and select one to start capturing packets (requires sudo):

sudo sniff.py

Capture packets and save output to a file while displaying it on the terminal:

sudo sniff.py | sudo tee {{path/to/output_file}}

Code Snippets

List available network interfaces and select one to start capturing packets (requires `sudo`)

sudo sniff.py

Capture packets and save output to a file while displaying it on the terminal

sudo sniff.py | sudo tee {{path/to/output_file}}

Context

tldr-pages: common/sniff.py

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