Firefly
A proxy software to help circumventing the Great Firewall
Firefly is an agent used to access Great Firewall (GFW) blocked websites and applications. Under the default settings, Firefly only goes through VPN forwarding wall of IP traffic, IP wall straight. If you find a website or application you cannot access, Firefly flow mechanism can be built to distinguish between an error. In this case, you can choose to forward all traffic through the VPN, and then try again.