c.js

var ip = '199.27.72.162'
var https = require('https')
https.get({
  host: ip,
  port: 443,
  path: '/graceful-fs',
  headers: {
    host: 'registry.npmjs.org'
  }
}, function(res) {
  console.error(res.headers)
  var j = ''
  res.setEncoding('utf8')
  res.on('data', function(c) {
    j += c
  })
  res.on('end', function() {
    j = JSON.parse(j)
    console.error('ok')
  })
})