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I have 2 processes running on 2 different machines.
What is the best way to communicate between those to send instructions WITHOUT using any username/password?
Language : C++
There are many solutions with different pros and cons. Try googling for it.
Since you've not given any other requirements, the simplest way is via socket programming. Check out this https://www.geeksforgeeks.org/socket-programming-cc/ for some basic knowledge and http://www.cs.rpi.edu/~moorthy/Courses/os98/Pgms/socket.html for examples.
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I'm trying to write text-based gui. Is there a way to access terminal per pixel using pure C++? I read a one method, but it was SDL based ;[
Not sure what you imply by "Pure C++", but ncurses is the go-to library for CLI applications (and there is a port for Windows called pdcurses )
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I am implementing network layer to aggregate 2 network interface by dividing data to send them on 2 interfaces and combine it on the receiving end. I have achieved it in socket programming(c) but now I have to implement it on kernel in Ubuntu. I cant figure out where to start as i do not have any prior knowledge of kernel programing. Can anyone guide me about any helpful tutorials or demos so i can start working on it.
Have a look at network interface bonding.
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Is that possible to create a low level framework similar to OpenGL?
What do you need to building such API?
No, implementing something like OpenGL is not possible. Since the time OpenGL has decended from the heavens complete, writing something like it was forbidden by all common religions.
But really, what you'll actually need is about 21 years of work, a few thousands of developers and broad support from all industry leaders, so yea, piece of cake.
Or actually, all you need is just a notepad and a pencil, writing is easy!
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I am have brought a Development board AX22001. I want to write an TCP app server/client.
But I don't really know, where to write app and how to program it over.
Do anyone in here have got any experience with AX22001?
I hope you guys can help, I did try to write to AX22001 support but they are too slow answering my questions.
You know, there's a fairly comprehensive amount of information, demo code, manuals, APIs, and references on their website: http://www.asix.com.tw/products.php?op=pItemdetail&PItemID=106;72;104. My suggestion would be to start reading through it!
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In my c++ application, I want to get the HTTP messages such like GET/200OK, and then parse them in to my own struct. How can I get them from the networking card in the run time?
You can try using libucyrl mentioned in this answer.
Also you can write your own TCP client/server application and read the data from sockets, then parse it the way you want it. In this case is better to familiarize first with the HTTP protocol.
I think some tutorials might be useful too, so here are a couple of links:
http://www.freeos.com/articles/4121/
http://www.jmarshall.com/easy/http/