Update & Upgrade
# Make sure your list of packages is update to date, and system upgrade
sudo apt-get update
sudo apt-get upgrade
sudo apt-get dist-upgrade
sudo apt-get autoremove
Web Server (Apache2)
# Installation
sudo apt-get install apache2
# Create a new web site JUniverse
# Customer can create a directory named JUnivers, like ~/JUniverse.
cd /var/www/html
# Create link for JUniverse
sudo ln -s ~/JUniverse JUniverse
cd /etc/apache2/sites-available
sudo cp 000-default.conf juniverse.conf
sudo nano juniverse.conf
# updating it as below
<VirtualHost *:81>
DocumentRoot /var/www/JUniverse
# save and exit
# restart
sudo a2ensite juniverse.conf
sudo service apache2 restart