Apache

Digital Ocean tutorial for Virtual Hosts.

Enable site:sudo a2ensite SITENAME

Disable site:sudo a2dissite SITENAME

List apache modules:apache2ctl -M

Enable an apache2 module:sudo a2enmod MODULENAME

Disable an apache2 module:sudo a2dismod MODULENAME

Enable mod rewrite: sudo a2enmod rewrite

Reload server:service apache2 reload

Force reload the server:sudo /etc/init.d/apache2 force-reload

Apache file permissions:

chown -R www-data:www-data /folder/
chmod +r /folder

Virtual hosts directory: /etc/apache2/sites-available/

Virtual Host sample file:

<VirtualHost *:80>
  DocumentRoot /var/www/site
  ServerName site.example.com
  CustomLog /var/www/logs/site/access.log combined
  ErrorLog /var/www/logs/site/error.log
</VirtualHost>