Question: I am trying to connect to a Windows based SSTP VPN network. I am using OS X Yosemite, I was wondering if there is any solution that can allow me to connect to a SSTP based VPN. 

For the record, I have already tried using EasyVPN, iSSTP, iSSTP2. all of which failed to connect, and they all seem to be not supported anymore.

Answer: 
The [sstp-client](http://sstp-client.sourceforge.net/) works for me. It is a command-line program. I installed it using the homebrew command:

```
brew install sstp-client

```
I think you will find [Tunnelblick](https://tunnelblick.net/%20%22Tunnelblick) will do it without any problems. It's well supported and has good documentation on the site.