http://www.debian-administration.org/articles/228

install:
	# apt-get install proftpd

once downloaded debconf will ask if you wish to run the server via inetd, or in
a standalone fashion. in general you want the latter option. after the
installation the server will be running, and will grant access to all user
accounts upon the host. if you wish to stop the server prior to more
configuration you can do so with:
	/etc/init.d/proftpd stop

the configuration of proftpd is conducted via the configuration file:
	/etc/proftpd.conf

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Output when setting up ProFTPd as standalone:

	Adding system user `ftp'...
	Adding new user `ftp' (106) with group `nogroup'.
	Creating home directory `/home/ftp'.
	`/usr/share/doc/proftpd/examples/welcome.msg' ->
		`/home/ftp/welcome.msg.proftpd-new'
	Starting ProFTPD ftp daemon: proftpd.