* [https://aacable.wordpress.com/2015/08/07/centos-sending-email-using-sendmail-relay-via-gmail/ Sendmail SMTP GMail Relay]: Alternate tutorial using GMail and <code>sendmail</code> to send system e-mails (<code>cyrus-sasl-plain</code> and <code>cyrus-sasl-md5</code> required).
* [http://fedoraproject.org/wiki/AutoUpdates Automatic Updates]: Configure the HDA to automatically update the OS.
* [https://www.howtoforge.com/tutorial/how-to-access-google-drive-from-linux-gdrive/ Google Drive]: Tool that lets you access your Google Drive account through the command line.
== Applications ==