Why do we ping the IP 4.2.2.2 to test connectivity?

Posted by gnavi on Server Fault See other posts from Server Fault or by gnavi
Published on 2010-04-15T17:35:43Z Indexed on 2010/04/15 17:43 UTC
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For as long as I can remember, I've always used the IP 4.2.2.2 when testing network connectivity using ping. What is significant about this IP, and when did this practice start?

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