Tunnel outbound HTTP over inbound socket connection

Question

** This question might belong on SF except for one of the constraints below (not having admin rights on one machine) **

At my work I have two machines, A and B. Machine A is my primary development machine. It is completely disconnected from the corporate network. Machine B is connected and is used primarily for email and web access. It is rather locked down - I don't have admin rights and it does not accept inbound connections. I cannot run programs I download, however I have Visual Studio 2005 and can create and run executables which works great (notwithstanding lack of admin rights).

I have an ad-hoc wireless network between the two and I'm able to transfer files via standard Windows shares so long as I browse from Machine B to a share on Machine A. I am also able to browse to websites hosted on Machine A, including non-standard port numbers (ie, http://machineb:12121/).

My goal is to create some sort of connection initiated by Machine B to Machine A which then grants me internet access on Machine A, presumably by setting up a proxy server on Machine B. However, I would need source code to the proxy server so I could build & run it locally.

My initial thought is to create two apps, one to run on Machine B and pings the app on A (which listens for local requests on port 80), and when it receives a response (containing a URL I guess) to use a HttpWebRequest object to hit that URL and then pass that data back... but I can see this getting complicated real quick.

Any suggestions to get me started?

Answer 1

Any number of open source web proxies will do what you're asking. You can do it with apache, and mod_proxy, even.

However, were I your admin, and I caught you tunnelling access out of a machine I'd specifically prohibited access from/to, I would do such things to you that other programmers would weep at the very mention of your name. Tread lightly.