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H0bbes

IP address

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Quote:
Original post by H0bbes
I like to know if i can get IP address from Machine that is connected with Proxy?
In general you'll have to ask someone with a public IP. This service for example.

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Just to expand on doynax's answer, you'd need to open a socket to www.whatismyip.com on port 80, and send:

GET / HTTP/1.0
Host: www.whatismyip.com
Connection: Close



Where each line ends with a "\r\n" pair, and the whole thing ends with a blank line (so the last 4 chars are "\r\n\r\n")
Then read the input until you get "<TITLE>Your ip is ", and then read the next part for the IP.
You could also use a library to make this stuff easier, I believe hplusplus has a very small bit of code to do this. Have a look in the Multiplayer and Network Programming forum.

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Guest Anonymous Poster
Wouldn't this give the IP address of the proxy server?

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Quote:
Original post by H0bbes
I like to know if i can get IP address from Machine that is connected with Proxy?
Obviously confusingly worded.

Answer: no. Not unless they tell you. Some proxies will send headers that look like

X-Proxy-For: xxx.xxx.xxx.xxx

or something, but these are rare. really rare. nonexistant rare.

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Quote:
Original post by Anonymous Poster
Wouldn't this give the IP address of the proxy server?

Yes, I thought that was what you wanted.
So do you want to know the internal address of a machine behind a proxy from the outside? Or perhaps something else entirely..

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