How to Install Apache2 to make Web Server on Ubuntu 20.04

 sudo apt update

sudo apt install apache2

sudo systemctl is-active apache2

sudo systemctl is-enabled apache2

sudo systemctl status apache2

sudo systemctl stop apache2      #stop apache2

sudo systemctl start apache2     #start apache2

sudo systemctl restart apache2   #restart apache2

sudo systemctl reload apache2    #reload apache2

sudo systemctl disable apache2   #disable apache2

sudo systemctl enable apache2    #enable apache2

ls /etc/apache2/*

sudo vim /etc/apache2/apache2.conf 

ServerName webserver1.tecmint.com

sudo apache2ctl configtest

sudo systemctl restart apache2

sudo systemctl status apache2

sudo ufw allow http

sudo ufw allow https

sudo ufw reload

OR

sudo ufw allow 80/tcp

sudo ufw allow 443/tcp

sudo ufw reload

ls /var/www/html/

sudo mkdir -p /var/www/html/olineit.info

sudo chown www-data:www-data -R /var/www/html/olineit.info

sudo chmod 775 -R /var/www/html/olineit.info

sudo vim /var/www/html/olineit.info/index.html

sudo vim /etc/apache2/sites-available/olineit.info.conf

sudo a2ensite olineit.info.conf

sudo systemctl reload apache2