sudo ensite code example
Example 1: a2ensite example
a2ensite /etc/apache2/sites-available/new-domain.conf
//-----------------
a2dissite /etc/apache2/sites-available/new-domain.conf
Example 2: a2ensite example.
a2ensite /etc/apache2/sites-available/new-domain.conf
//-----------------
a2dissite /etc/apache2/sites-available/new-domain.conf