NAME
tftpd —
Internet Trivial File Transfer Protocol
server
SYNOPSIS
tftpd |
[-l] [-n]
[directory ...] |
DESCRIPTION
Tftpd is a server which supports the Internet Trivial
File Transfer Protocol (RFC 783). The TFTP server operates at the port
indicated in the ‘tftp’ service
description; see
services(5). The server is normally started by
inetd(8).
The use of
tftp(1) does not require an account or password on the remote system.
Due to the lack of authentication information, tftpd
will allow only publicly readable files to be accessed. Files containing the
string ``/../'' are not allowed. Files may be written only if they
already exist and are publicly writable. Note that this extends the concept
of “public” to include all users on all hosts that can be
reached through the network; this may not be appropriate on all systems, and
its implications should be considered before enabling tftp service. The
server should have the user ID with the lowest possible privilege.
Access to files may be restricted by invoking
tftpd with a list of directories by including up to
20 pathnames as server program arguments in
/etc/inetd.conf. In this case access is restricted
to files whose names are prefixed by the one of the given directories. The
given directories are also treated as a search path for relative filename
requests.
The options are:
-l- Logs all requests using syslog(3).
-n- Suppresses negative acknowledgement of requests for nonexistent relative filenames.
SEE ALSO
HISTORY
The tftpd command appeared in
4.2BSD.