Installing an FTP server on your machine facilitates sharing and transferring files easily and quickly.

ProFTPD is an FTP server that is easy to install, use, and configure.

To install ProFTPD on ubuntu:
sudo apt-get install proftpd

To start proftpd;
sudo /etc/init.d/proftpd start

To configure proftpd, edit the file:
/etc/proftpd/proftpd.conf