WooCommerce extra configuration steps
InstallingDOMDocument
WooCommerce needs DOMDocument to create HTML emails
sudo apt-get install php-xml
Install Multibyte String
To display none-English characters you should install:
sudo apt-get install php7.0-mbstring
W3C Total Cache additional configuration steps
Enable 2 Apache modules
sudo a2enmod expires
sudo a2enmod headers
sudo service apache2 restart
Enable compression in php.ini
Do not zlib.output_compression if you are using W3C Total Cache.
sudo nano /etc/php/7.0/apache2/php.ini
Use “Ctrl”+”W” and search for zlib.output_compression and change the value from Off to On
zlib.output_compression = On
The directive zlib.output_compression_level is used to adjust the compression level. Set the value between 1 and 9. Choose 1 to get the least compression or 9 to get most. The default value is six which balances compression without degrading the servers performance.
zlib.output_compression_level = 6
Finally, restart Apache, so the changes take effect.
sudo service apache2 restart