FTP server .local only

Hi all,

I'm running Yosemite with OSX server on my Macbook Pro (2011) and cannot seem to connect to my ftp server remotely. I can connect to sites, and vpn, but everytime I start the ftp service it only says "available on your local network at xyz.local" I can't for the life of me figure out why I cant get it remotely. Im using an Airport extreme so it should be automatically setting up, but not sure what is going on. Any help would be great!

Thanks,

T