In PHP I get the Internet host name corresponding to IP address of my visitor.
I do this with:
gethostbyaddr($_SERVER['REMOTE_ADDR']); //In my case it returns "r2301050.b2b2c.ca"
What can I find out about this host name value (r2301050.b2b2c.ca)? You know, we can find out more about a given IP address, what can we do with an host name? I mean what additionnal information can I get about this host/user?