Linux provides a wide range of tools for network monitoring and troubleshooting. Linux is a popular operating system for many devices, including CAN bus sniffers. A CAN bus sniffer can be used to troubleshoot network problems, or to simply monitor network traffic. Sniffing allows for the monitoring of data packets being sent and received by devices on a network. A CAN bus sniffer is a device used to monitor messages on a CAN bus.