Install node red di ubuntu 14.04

sysop@sysop:~$ sudo apt-get install mosquitto 
sysop@sysop:~$ sudo apt-get install mosquitto-clients
sysop@sysop:~$ sudo apt-get install npm
sysop@sysop:~$ sudo ln -s /usr/bin/nodejs /usr/bin/node
sysop@sysop:~$ sudo npm install -g node-red
npm http GET https://registry.npmjs.org/node-red
npm http GET https://registry.npmjs.org/node-red
npm http GET https://registry.npmjs.org/node-red
npm ERR! Error: CERT_UNTRUSTED
npm ERR!     at SecurePair.<anonymous> (tls.js:1370:32)
npm ERR!     at SecurePair.EventEmitter.emit (events.js:92:17)
npm ERR!     at SecurePair.maybeInitFinished (tls.js:982:10)
npm ERR!     at CleartextStream.read [as _read] (tls.js:469:13)
npm ERR!     at CleartextStream.Readable.read (_stream_readable.js:320:10)
npm ERR!     at EncryptedStream.write [as _write] (tls.js:366:25)
npm ERR!     at doWrite (_stream_writable.js:223:10)
npm ERR!     at writeOrBuffer (_stream_writable.js:213:5)
npm ERR!     at EncryptedStream.Writable.write (_stream_writable.js:180:11)
npm ERR!     at write (_stream_readable.js:583:24)
npm ERR! If you need help, you may report this log at:
npm ERR!     <http://github.com/isaacs/npm/issues>
npm ERR! or email it to:
npm ERR!     <npm-@googlegroups.com>

npm ERR! System Linux 3.19.0-80-generic
npm ERR! command "/usr/bin/nodejs" "/usr/bin/npm" "install" "-g" "node-red"
npm ERR! cwd /home/sysop
npm ERR! node -v v0.10.25
npm ERR! npm -v 1.3.10
npm ERR!
npm ERR! Additional logging details can be found in:
npm ERR!     /home/sysop/npm-debug.log
npm ERR! not ok code 0

sysop@sysop:~$ sudo npm cache clean -f
sysop@sysop:~$ sudo npm install -g n
sysop@sysop:~$ sudo n stable

sysop@sysop:~$ hash -r

sysop@sysop:~$ cd ./node-red

sysop@sysop:~/.node-red$ npm install node-red-contrib-modbus
sysop@sysop:~/.node-red$ npm install node-red-dashboard

sysop@sysop:~/.node-red$ node-red

8 May 21:31:14 - [info] 

Welcome to Node-RED
===================

8 May 21:31:14 - [info] Node-RED version: v0.18.4
8 May 21:31:14 - [info] Node.js  version: v10.0.0
8 May 21:31:14 - [info] Linux 3.19.0-80-generic x64 LE
8 May 21:31:14 - [info] Loading palette nodes
8 May 21:31:15 - [warn] ------------------------------------------------------
8 May 21:31:15 - [warn] [node-red/rpi-gpio] Info : Ignoring Raspberry Pi specific node
8 May 21:31:15 - [warn] ------------------------------------------------------
8 May 21:31:15 - [info] Settings file  : /home/sysop/.node-red/settings.js
8 May 21:31:15 - [info] User directory : /home/sysop/.node-red
8 May 21:31:15 - [warn] Projects disabled : set editorTheme.projects.enabled=true to enable
8 May 21:31:15 - [info] Flows file     : /home/sysop/.node-red/flows_sysop.json
8 May 21:31:15 - [info] Creating new flow file
8 May 21:31:15 - [info] Server now running at http://127.0.0.1:1880/
8 May 21:31:15 - [info] Starting flows
8 May 21:31:15 - [info] Started flows

Open browser : 

http://localhost:1880

Autostart:
sysop@sysop:~$ sudo update-rc.d nodered defaults