# set http proxy
export http_proxy=http://PROXYHOST:PROXYPORT
# set http proxy with user and password
export http_proxy=http://USERNAME:PASSWORD@PROXYHOST:PROXYPORT
# set http proxy with user and password (with special characters)apt-get install python-pip
pip install shadowsocks
sudo ssserver -p 443 -k password -m aes-256-cfb --user nobody -d start