title: What is url for npm packages repository?
body: <p>I have installed node js and npm on my windows But when I try to install npm modules(packages) using </p>
  
  <pre><code>command&gt;&gt;npm install -g xxxx(package name)
  </code></pre>
  
  <p>It doesn't get installed, and it asked me to check proxy setting. As I am working on private network, so may be it doesn't allow me to access the url from which npm packages get downloaded.</p>
  
  <p>Please tell me what is url for such npm packages from where it gets downloaded so that I can ask my network provider to give access for that site.</p>