appledeMBP:~ apple$ npm install -g nrm
npm ERR! Darwin 15.6.0
npm ERR! argv "/usr/local/bin/node" "/usr/local/bin/npm" "install" "-g" "nrm"
npm ERR! node v4.4.4
npm ERR! npm v2.15.1
npm ERR! code ECONNRESET
npm ERR! network tunneling socket could not be established, cause=connect ECONNREFUSED 127.0.0.1:8118
npm ERR! network This is most likely not a problem with npm itself
npm ERR! network and is related to network connectivity.
npm ERR! network In most cases you are behind a proxy or have bad network settings.
npm ERR! network
npm ERR! network If you are behind a proxy, please make sure that the
npm ERR! network 'proxy' config is set properly. See: 'npm help config'
npm ERR! Please include the following file with any support request:
npm ERR! /Users/apple/npm-debug.log