I have something like a proxy server (written in java) running between my clients and the actual video server (made in c++). Everything the clients send goes through this proxy and is then redirected to the server.
It is working fine, but I have some issues and think it would be better if I could make this proxy server only to listen to the clients requests and then somehow tell the server that a request has been made from the client side, and that it is supposed to create a connection with the client directly.
Basically in the TCP level what I want to happen is something like this:
1- whenever a client sends a SYN to my proxy, the proxy just sends a message to the real server telling the ip and port of the client.
2- The server would then send the corresponding SYN-ACK to the specified client creating a direct connection between client and server.
The proxy would then be just relaying the initial requests (but not the later data transfer) to the actual server. I just don’t know if that is possible.
Thank you very much
Nelson R. Perez
You don’t have control of TCP handshake in userland like that. This is what firewalls/routers do but it all happens in the kernel. Take a look at the firewalling software for your platform – you might not even have to code anything.