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A simple Alpine Linux based Docker image with tcpdump for network troubleshooting and testing

• The man page for tcpdump: http://www.tcpdump.org/tcpdump_man.html
• Docker Hub: https://hub.docker.com/repository/docker/slashdoom/tcpdump/general
• A GitHub repo with the Dockerfile: https://github.com/slashdoom/tcpdump-docker

Run the Docker Image and Show the tcpdump Options

docker run -it --rm slashdoom/tcpdump --help

Usage

Packet capture another container to stdout:

$ docker run -it --net container:[container name or ID]  slashdoom/tcpdump [TCPDUMP OPTIONS]

Packet capture another container to file:

$ docker run -it -v $PWD:/pcap --net container:[container name or ID]  slashdoom/tcpdump -w /pcap/capture.pcap [TCPDUMP OPTIONS]

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