dumpcap:tldr:33096
dumpcap: Write to a ring buffer with a specific max file limit of a specific size.
$ dumpcap --interface ${1} -w ${path-to-output_file-pcapng} --ring-buffer filesize:${500000} --ring-buffer files:${10}
try on your machine
This command is using the dumpcap tool, which is a command-line tool for capturing network traffic. Here's the breakdown of the command:
dumpcap: This is the command used to run thedumpcaptool.--interface ${1}: This flag specifies the network interface from which the tool should capture the traffic.${1}is a placeholder for a parameter that should be provided when executing the command. It is typically used to pass the interface name as an argument.-w ${path-to-output_file-pcapng}: This flag specifies the path and filename for the output file where captured packets will be saved.${path-to-output_file-pcapng}is another placeholder that should be replaced with the actual desired path to the output file.--ring-buffer filesize:${500000}: This flag configures a ring buffer to store captured packets. It specifies the maximum size of the buffer in bytes.${500000}is the placeholder for the buffer size, which in this example is set to 500,000 bytes.--ring-buffer files:${10}: This flag specifies the number of files in the ring buffer.${10}is the placeholder for the number of files, which in this example is set to 10.
In summary, this command is using dumpcap to capture network traffic from a specified interface and save it to an output file in pcapng format. The captured packets are stored in a ring buffer that can hold up to 500,000 bytes of data spread across 10 files.
This explanation was created by an AI. In most cases those are correct. But please always be careful and
never run a command you are not sure if it is safe.