Setup NAS related features

Install the stock samba package using apt-get to provide SMB/CIFS support.

To let the root fs stay in ReadOnly mode, edit /etc/default/voyage-util and set:

VOYAGE_SYNC_DIRS="var/lib/samba"

This effectively will move /var/lib/samba to tmpfs.

Then, reboot to take effect.

Install PHP File Navigator(PFN) to allow file upload/download via web.

Install pure-ftpd using apt-get to provide FTP service.

Install rsync using apt-get to provide rsync service.