Note: For newer versions of NodeJS, Nginx and MongoDB, checkout their websites and update the related parts.
run all the commands in terminal as the root user (sudo su)
yum update
yum install -y epel-releaseBefore we look at some common commands, I just want to note a few keyboard commands that are very helpful:
Up Arrow: Will show your last commandDown Arrow: Will show your next commandTab: Will auto-complete your commandCtrl + L: Will clear the screen