Where can I learn to code Multiplayer/Networking based C++?

[oN3AqMoL]

I have learned C++ through and through; and I want to be able to start network programming.

I have learned about basic networking(packets, 7 layers, http, "der" stuff) but I do not know how to translate my knowledge into code. A simple link to a book or a webpage that teaches about the stuff would suffice.
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#include <iostream>
using namespace std;

int main(){
cout<<"Thank you!";
}

[oN3AqMoL]

I guess my programmign stops here.