Ubuntu 10.04 Lucid
With the release of Ubuntu 10.04 Lucid, bareFTP can be found in the universe repository.

Unofficial builds
Unofficial builds for several ubuntu versions can be found in my ppa at launchpad. The ppa can be found here. Follow the instructions for your version.

You will need to import this key file on your system.

bareFTP can be found in the PackMan repository

bareFTP can be found somewhere in the Fedora repositories.
New versions can be a bit delayed.

bareFTP can be found in AUR. See here for information on how to install applications from AUR.

Optionally you can use the unoffical third-party tool yaourt to install from AUR.

New versions can be a bit delayed.

As bareFTP is still keyworded for testing, you will need to add an entry to your package.keywords file to be able to emerge it.

# echo 'net-ftp/bareftp ~arch' >> /etc/portage/package.keywords
# emerge net-ftp/bareftp

New versions can be a bit delayed.

Install by running: sudo conary update bareftp
Or through packagekit, search for bareftp and push install.

A FreeBSD port is available. See http://www.freshports.org/ftp/bareftp/ for information on how to download and install.