====== Behind Proxy Server ======
Two commands is needed. Assume ''HTTP'' protocol is being uses, and the proxy server hostname is ''proxy.exmaple.com'', and the port is ''8080''.

===== Proxy without Password=====
<code>
npm config set proxy http://proxy.example.com:8080
npm config set https-proxy http://proxy.example.com:8080
</code>


===== Proxy with Password=====
Assume the user log in name is ''username'', and the password is ''password'':
<code>
npm config set proxy http://username:password@proxy.example.com:8080
npm config set https-proxy http://username:password@proxy.example.com:8080
</code>

===== To View the Current Setting=====
Assume the user log in name is ''username'', and the password is ''password'':
<code>
npm config get proxy
npm config get https-proxy
</code>

===== To Delete the Old Setting=====
Assume the user log in name is ''username'', and the password is ''password'':
<code>
npm config delete proxy
npm config delete https-proxy
</code>