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).
First, 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