Package: twoftpd

"twoftpd" package binaries on Debian:

/usr/bin/twoftpd-anon-conf /usr/bin/twoftpd-anon /usr/bin/twoftpd-auth /usr/bin/twoftpd-bind-port /usr/bin/twoftpd-conf /usr/bin/twoftpd-drop /usr/bin/twoftpd-switch /usr/bin/twoftpd-xfer

You may install this package on Debian with apt-get install twoftpd