If a '.banner' file is located in the 'ftp' user home directory (or in the
root directory of a virtual server, see below), it will be printed when the
client logs in. Put a nice ASCII-art logo with your name in that file.
This file shouldn't be larger than 4000 bytes, or it won't be displayed.
In each directory, you may also have a '.message' file. Its content will be
printed when a client enters the directory. Such a file can contain important