How to setup Shadowsocks on your Ubuntu server
Your school or company network may block the access to a few specific websites. To solve this problem, I'd highly recommend Shadowsocks, since it is the easiest proxy tool I've ever found, and it's FREE (of course iff you have your own server running).
ssh to your server, and make sure you have Python and
pip installed. If you have Python but not
pip, install it using the following command
$ sudo apt-get install python3-pip