back-proxy/README.md

Reversing proxy to you gadgets or home http-server behind NAT with dynamic WAN ip. Needs two "servers": one in Internet for you connects for proxing and second in you home for serve proxy requests.

# back-proxy

Reversing proxy to you gadgets or home http-server behind NAT with dynamic WAN ip.
Needs two "servers": one in Internet for you connects for proxing and second in you home for serve proxy requests.

# How its works
![Basic diagram](https://raw.githubusercontent.com/amurchick/back-proxy/master/BasicDiagram.png)

After starting, `client.js` make permanent `pipe` to `server.js`. 
On new connection from any device to `public` - `server.js` send data to `pipe` and `client.js` opens same connection to `shared` (and so one on next connections).
When connection dropped by any side - on `server.js` or `client.js` - other end drop connection to.

## Scenario

You want to access to you gadget (like http://tessel.io who have own web server) in home LAN (ip: 192.168.0.201).

### Steps

#### Create config (used for client and server scripts)

Please copy `config.default.js` to `config.js` and modify to you needs:

```javascript
module.exports = {

	// Public server config (where you connect to access LAN server)
	public: {
		host:	'1.2.3.4',
		port:	'8080'
	},

	// Upstream server config (where proxy from LAN connect)
	upstream: {
		host:	'1.2.3.4',
		port:	'8888'
	},

	// Shared server config (server in LAN)
	shared: {
		host:	'192.168.0.201',
		port:	'8000'
	}

};
```

#### Run `node server.js` on server `1.2.3.4`
#### Run `node client.js` on you home `PC`
#### Try it

For http-server - browse to http://1.2.3.4:8080/ and you will see page from you home http-server http://192.168.0.201:8000

*Note:* any protocol supported, not only http. This scripts only traverse data you send to socket.