enable apache2 code example

Example 1: a2ensite example

a2ensite /etc/apache2/sites-available/new-domain.conf
//-----------------
a2dissite /etc/apache2/sites-available/new-domain.conf

Example 2: enable apache2 site

a2ensite example.com

Example 3: configure apache in ubuntu

service apache2 reload

Example 4: a2ensite example.

a2ensite /etc/apache2/sites-available/new-domain.conf

//-----------------

a2dissite /etc/apache2/sites-available/new-domain.conf