1.\" Copyright (c) 1983, 1991, 1993 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form must reproduce the above copyright 10.\" notice, this list of conditions and the following disclaimer in the 11.\" documentation and/or other materials provided with the distribution. 12.\" 3. All advertising materials mentioning features or use of this software 13.\" must display the following acknowledgement: 14.\" This product includes software developed by the University of 15.\" California, Berkeley and its contributors. 16.\" 4. Neither the name of the University nor the names of its contributors 17.\" may be used to endorse or promote products derived from this software 18.\" without specific prior written permission. 19.\" 20.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30.\" SUCH DAMAGE. 31.\" 32.\" @(#)tftpd.8 8.1 (Berkeley) 6/4/93 33.\" 34.Dd June 4, 1993 35.Dt TFTPD 8 36.Os BSD 4.2 37.Sh NAME 38.Nm tftpd 39.Nd 40Internet Trivial File Transfer Protocol server 41.Sh SYNOPSIS 42.Nm tftpd 43.Op Fl l 44.Op Fl n 45.Op Ar directory ... 46.Sh DESCRIPTION 47.Nm Tftpd 48is a server which supports the 49Internet Trivial File Transfer 50Protocol (\c 51.Tn RFC 783). 52The 53.Tn TFTP 54server operates 55at the port indicated in the 56.Ql tftp 57service description; 58see 59.Xr services 5 . 60The server is normally started by 61.Xr inetd 8 . 62.Pp 63The use of 64.Xr tftp 1 65does not require an account or password on the remote system. 66Due to the lack of authentication information, 67.Nm tftpd 68will allow only publicly readable files to be 69accessed. 70Files containing the string ``/\|\fB.\|.\fP\|/'' are not allowed. 71Files may be written only if they already exist and are publicly writable. 72Note that this extends the concept of 73.Dq public 74to include 75all users on all hosts that can be reached through the network; 76this may not be appropriate on all systems, and its implications 77should be considered before enabling tftp service. 78The server should have the user ID with the lowest possible privilege. 79.Pp 80Access to files may be restricted by invoking 81.Nm tftpd 82with a list of directories by including up to 20 pathnames 83as server program arguments in 84.Pa /etc/inetd.conf . 85In this case access is restricted to files whose 86names are prefixed by the one of the given directories. 87The given directories are also treated as a search path for 88relative filename requests. 89.Pp 90The options are: 91.Bl -tag -width Ds 92.It Fl l 93Logs all requests using 94.Xr syslog 3 . 95.It Fl n 96Suppresses negative acknowledgement of requests for nonexistent 97relative filenames. 98.El 99.Sh SEE ALSO 100.Xr tftp 1 , 101.Xr inetd 8 102.Sh HISTORY 103The 104.Nm 105command appeared in 106.Bx 4.2 . 107