Samba file sharing is no longer installed by default in Ubuntu 14.04 so if you need to share files over your local network LAN you will need to install a few packages. Afterwards lookup “Personal File Sharing” and it should be ready to configure and run. And don’t forget to leave the proper port open when you configure GUFW/UFW firewall settings. After you install the packages listed here you will need to also power cycle/reboot your system.
How to Share Files over the Network
sudo apt-get install samba system-config-samba cifs-utils winbind
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https://debianhelp.wordpress.com/2014/09/30/to-do-list-after-installing-ubuntu-14-04-lts-os/