Every Palo Alto Networks device includes a command-line interface (CLI) that allows you to monitor and configure the device. Although this guide does not provide detailed command reference information, it does provide the information you need to learn how to use the CLI. It includes information to help you find the command you need and how to get syntactical help after you find it. It also explains how to verify the SSH connection to the firewall when you access the CLI remotely, and how to refresh the SSH keys and configure key options when connecting to the management interface.