Any chance on supporting a reverse socks proxy mode similar to <a href="https://github

hi <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="

It <a href="https://stackoverflow.com/questions/19067986/reverse-connecting-sock5-prox

Feature Request: Suppport for Reverse Socks about nimsocks HOT 2 OPEN

enthus1ast commented on September 28, 2024

Feature Request: Suppport for Reverse Socks

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Comments (2)

enthus1ast commented on September 28, 2024

hi @jkMason yes i have considered it (and also build some unpublished demo code). But did not find a good solution yet.
Do you know of a standard protocol implementation that does something like this?

I'm not against adding a custom protocol (when its a reasonable amount of work) but would prefer a standard.

I could have a look how Chisel does it, though.

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jkMason commented on September 28, 2024

It looks like there isn't a standard protocol implementation of the reverse portion of a reverse socks proxy (like there is with a standard socks proxy). That being said, I think the easiest way to implement a reverse mode would be to serialize Socks Requests and Socks Responses using something like Protobuf and send this data over a socket.

Hope the following diagram helps illustrate this:

                Standard SOCKS Proxy

+----------+        +----------+        +----------+ 
| SOCKS    |        | SOCKS    |        | Remote   |
| Client   | -----> | Server   | -----> | Resource |
|          |        |          |        |          |
+----------+        +----------+        +----------+ 


                                    Reverse SOCKS Proxy
                
+----------+        +----------+                         +----------+        +----------+
| SOCKS    |        | SOCKS    |    socket connection    | SOCKS    |        | Remote   |
| Client   | -----> | Server/  | <---------------------  | Server/  | -----> | Resource |
|          |        | Listener |                         | Client   |        |          |
+----------+        +----------+                         +----------+        +----------+

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