TCP sockets in C# - Client - Server Architecture

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My question is: How to make socket or any other connection between two computers which are not on the same network. I tried to find out solution, but every thing i tried was working only on same computer (Server and client application running on same machine // localhost). I tried turning off firewalls but id did not helped.

Specifically what i want, is to be able to send string to remote computer, or any other object.

Any help would be appreciated :)

Posted 3-Feb-11 7:02am

marko1989

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wizardzz 3-Feb-11 14:18pm

Um, as far as I can tell you do it the same way as the examples on local machines, except use the IP addresses of the boxes.

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Johnnei · Answer 1 · 2011-02-28T22:08:00

You need to portforward the port chosen.

//client part
TcpClient client = new TcpClient();
client.Connect(new IPAdress(new Byte[] { 127, 0, 0, 1 }), 12345); //Replace 127,0,0,1 with your external ip and 12345 with the choosen port (and forwarderd on the server)
//Now its connected or it times out

//Server part
TcpListen server = new TcpListener(IPAdress.Any, 12345); //Replace 12345 with the forwarded port
server.Start(); //Start Server
server.AcceptTcpClient(); //Holds the thread till a client connects

TCP sockets in C# - Client - Server Architecture

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TCP sockets in C# - Client - Server Architecture

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