Setup Virtual Host On Ubuntu Server

First - need to make permissiom

 sudo chmod -R 755 /var/www

Second -  Create Bew Virtual Host File

The file locate in

/etc/apache2/sites-available/000-default.conf

Duplicate the file

sudo cp /etc/apache2/sites-available/000-default.conf /etc/apache2/sites-available/example.com.conf

Then edit file using nano

 sudo nano /etc/apache2/sites-available/example.com.conf

File will look like this

<VirtualHost *:80>
    ServerAdmin webmaster@localhost
    DocumentRoot /var/www/html
    ErrorLog ${APACHE_LOG_DIR}/error.log
    CustomLog ${APACHE_LOG_DIR}/access.log combined
</VirtualHost>

Edit the line to this:

ServerAdmin admin@example.com
ServerName example.com
ServerAlias www.example.com
DocumentRoot /var/www/example.com/public_html

The file will look like this

<VirtualHost *:80>
    ServerAdmin admin@test.com
    ServerName test.com
    ServerAlias www.test.com
    DocumentRoot /var/www/test.com/public_html
    ErrorLog ${APACHE_LOG_DIR}/error.log
    CustomLog ${APACHE_LOG_DIR}/access.log combined
</VirtualHost>

Third - Enable the Virtual Host File

sudo a2ensite example.com.conf

Then restart apache

sudo service apache2 restart

Then Set Up Local Hosts File

sudo nano /etc/hosts

The file will look like this:

127.0.0.1   localhost
127.0.1.1   guest-desktop
111.111.111.111 example.com