ftpusers - list of users that may not log in via the FTP daemon
The text file ftpusers
contains a list of users that may not log in using
the File Transfer Protocol (FTP) server daemon. This file is used not merely
for system administration purposes but also for improving security within a
TCP/IP networked environment.
file will typically contain a list of the users that either
have no business using ftp or have too many privileges to be allowed to log in
through the FTP server daemon. Such users usually include root, daemon, bin,
uucp, and news.
If your FTP server daemon doesn't use ftpusers
, then it is suggested that
you read its documentation to find out how to block access for certain users.
Washington University FTP server Daemon (wuftpd) and Professional FTP Daemon
(proftpd) are known to make use of ftpusers
The format of ftpusers
is very simple. There is one account name (or
username) per line. Lines starting with a # are ignored.