Install Apache in Ubuntu 16.04

We can get started by typing these commands:

    sudo apt-get update
    sudo apt-get install apache2

Since we are using a sudo command, these operations get executed with root privileges.

Open up the main configuration file with your text edit:

    sudo nano /etc/apache2/apache2.conf

Edit the following line replace server_domain_or_Ip with your server domain or IP:

    ServerName server_domain_or_IP

Next, check for syntax errors by typing:

    sudo apache2ctl configtest

Since we added the global ServerName directive, all you should see is:

    Output
    Syntax OK

Restart Apache to implement your changes:

    sudo systemctl restart apache2

Adjust the Firewall to Allow Web Traffic

If you look at the Apache Full profile, it should show that it enables traffic to ports 80 and 443:

    sudo ufw allow in "Apache Full"

    http://your_server_IP_address