Request to server x Reply from server y

Posted by klaasio on Server Fault See other posts from Server Fault or by klaasio
Published on 2013-11-03T15:33:20Z Indexed on 2013/11/03 15:56 UTC
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I need some advice from you guys: I'm dealing with a custom loadbalancer/software for which we will use 2 main servers and about 8 slave servers. In short: User sends request to main server, main server will receive and handle the requests, sends a request to a slave server and slave server should send data DIRECTLY to the "user".

User -> Main server

Main server -> Slave server

Slave server -> User

  • The reason for which data should be send directly to the user and not through the main server is because of bandwidth and low budget.

Now I have the following idea's: -IPinIP, but that is not possible in Layer7 (so far i know there some expensive routers for that) -IP Spoof, using C/C++ we will make it look like the reply came from main server.

But I was thinking, perhaps the reply "slave server -> User" could just come from a different IP without causing issues in the firewall from the user or his anti-virus. I don't know so well about "home" firewalls/routers and/or anti-virus software. I guess the user machine wouldn't handle it well?

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