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Message: [QUOTE="Phlip, post: 2544941"] You will ultimately be much better off opening a socket on the computer and port you want. Pings are for interactive command lines. If you open a socket you will get any error message Ping would have returned (as an int, not a string), and you will further verify the port you want is available. Use _popen("ping -c 4 127.0.0.1", "r"), and collect the string output of the ping. And remember the -c 4, so your Linux pinger doesn't ping forever (which is its incomprehensibly stupid default). [/QUOTE]