Send a socket between applications c#

Question

I would like to know if there is a way where you have a .net app name appA where it receives a tcp socket connection and then according to some rules will send the socket connec

Answer 1

No need to forwarding the connection, it can be use to act as a middle men

1. You receive the first connection
2. Process some rules
3. All ok, connect to AppB and everything that get's from AppA, send to AppB
4. If Rules say "no", send an error to AppA

Answer 2

Proxy

One option is to make AppA a proxy. That is, it accepts the connections, and connects on behalf the client to AppB - and merely forwards the data.

Socket Duplication

The solution you are really looking for is Socket.DuplicateAndClose() (make sure you read the documentation carefully). This allows you transfer the control of a socket between processes.

Typically you would:

• Start AppA, AppB and AppC.
• Use remoting to allow AppA to communicate with AppB and AppC.
• When a connection is made to AppA, determine who to send it to and:
  • Duplicate and close the socket in AppA.
  • Send the socket to the child process via remoting.
  • Open the socket in AppB using the Socket(SocketInformation) constructor.