Error downloading bin file

lacmach

Error executing command：
curl -sSL http://bit.ly/2ysbOFE | bash -s 1.4.0

zy@zy-VirtualBox:~/Desktop/fabric-samples/startFiles$ curl –sSL http://bit.ly/2ysbOFE | bash -s 1.4.0
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0curl: (6) Could not resolve host: xn--ssl-1n0a
0 0 0 0 0 0 0 0 --:--:-- 0:00:01 --:--:-- 0
curl: (56) Recv failure: 连接被对方重设