shadowsocks is a lightweight tunnel proxy which can help you get through firewalls

Put server.py on your server. Edit server.py, change the following values:

PORT server port
KEY a password to identify clients

Run python server.py on your server. To run it in the background, run setsid python server.py.

Put local.py on your client machine. Edit local.py, change these values:

SERVER your server ip or hostname
REMOTE_PORT server port
PORT local port
KEY a password, it must be the same as the password of your server

Run python local.py on your client machine.

Change proxy settings of your browser into

SOCKS5 127.0.0.1:PORT