Connecting Without KPPP Getting Started Guide 109 To verify whether or not you’re connected to your ISP, you can use the ping command to echo a system on the Internet. (For example, type ping www.yahoo.com and press Enter.) If a series of lines appear one at a time, you’re connected. To abort the output of the ping command, press Ctrl+C. To stop the PPP Connection 1. Enter this command: kill `cat /var/run/ppp0.pid`