mirror of https://github.com/mkerrisk/man-pages
57 lines
1.9 KiB
Groff
57 lines
1.9 KiB
Groff
.\" Copyright (c) 2000 Christoph J. Thompson <obituary@linuxbe.org>
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.\"
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.\" %%%LICENSE_START(GPLv2+_DOC_MISC)
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.\" This is free documentation; you can redistribute it and/or
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.\" modify it under the terms of the GNU General Public License as
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.\" published by the Free Software Foundation; either version 2 of
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.\" the License, or (at your option) any later version.
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.\"
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.\" This manual is distributed in the hope that it will be useful,
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.\" but WITHOUT ANY WARRANTY; without even the implied warranty of
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.\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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.\" GNU General Public License for more details.
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.\"
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.\" You should have received a copy of the GNU General Public
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.\" License along with this manual; if not, see
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.\" <http://www.gnu.org/licenses/>.
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.\" %%%LICENSE_END
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.\"
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.TH FTPUSERS 5 2000-08-27 "Linux" "Linux Programmer's Manual"
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.SH NAME
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ftpusers \- list of users that may not log in via the FTP daemon
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.SH DESCRIPTION
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The text file
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.B ftpusers
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contains a list of users that may not log in using the
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File Transfer Protocol (FTP) server daemon.
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This file is used not merely for
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system administration purposes but also for improving security within a TCP/IP
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networked environment.
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.PP
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The
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.B ftpusers
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file will typically contain a list of the users that
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either have no business using ftp or have too many privileges to be allowed
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to log in through the FTP server daemon.
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Such users usually include root, daemon, bin, uucp, and news.
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.PP
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If your FTP server daemon doesn't use
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.BR ftpusers ,
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then it is suggested that you read its documentation to find out how to
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block access for certain users.
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Washington University FTP server Daemon
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(wuftpd) and Professional FTP Daemon (proftpd) are known to make use of
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.BR ftpusers .
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.SS Format
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The format of
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.B ftpusers
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is very simple.
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There is one account name (or username) per line.
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Lines starting with a # are ignored.
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.SH FILES
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.I /etc/ftpusers
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.SH SEE ALSO
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.BR passwd (5),
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.BR proftpd (8),
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.BR wuftpd (8)
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