Apache2, ProFTP with Virtual FTP accounts on MySQL

Here is a checklist for installing and setting up Apache2 + ProFTPd with Virtual FTP accounts on MySQL, with correct folders permissions:

1. Install Apache2 with this tutorial
2. Install ProFTPd with this tutorial
3. Add the Apache user "www-data" to the group "ftpgroup": usermod -a -G ftpgroup www-data
4. Set your virtual webhost directory as follows: chown www-data:ftpgroup -R /var/yourvirtualwebdirectory
5. Set the permissions as follows: chmod 775 -R /var/yourvirtualwebdirectory
6. Reboot Apache2: service apache2 restart
7. Reboot ProFTPd: service proftpd restart