/////  node install

$ sudo apt-get install python-software-properties

$ curl -sL https://deb.nodesource.com/setup_6.x | sudo -E bash -

$ sudo apt-get install nodejs

/// mongo install 

sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv EA312927

echo "deb http://repo.mongodb.org/apt/ubuntu trusty/mongodb-org/3.2 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-org-3.2.list

sudo apt-get update

sudo apt-get install -y mongodb-org