tftpd man page on MirBSD

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TFTPD(8)		 BSD System Manager's Manual		      TFTPD(8)

NAME
     tftpd - DARPA Trivial File Transfer Protocol server

SYNOPSIS
     tftpd [directory ...]
     tftpd [-cs] [directory]

DESCRIPTION
     tftpd is a server which supports the DARPA Trivial File Transfer Proto-
     col. 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 may be written only if
     they already exist and are publicly writable, unless the -c flag is
     specified (see below). 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,
     unless the -s flag is specified (see below), in which case it must be
     started with user ID 0.

     Access to files may be restricted by invoking tftpd with a list of direc-
     tories by including pathnames as server program arguments in
     /etc/inetd.conf. In this case access is restricted to files whose names
     are prefixed by one of the given directories.

     The options are as follows:

     -c	     If the -c flag is used, tftpd will allow new files to be created;
	     otherwise uploaded files must already exist. Files are created
	     with default permissions allowing anyone to read or write to
	     them.

     -s	     When using the -s flag with a directory name, tftpd will
	     chroot(2) on startup; therefore the remote host is not expected
	     to pass the directory as part of the file name to transfer. This
	     option is intended primarily for compatibility with SunOS boot
	     ROMs which do not include a directory name.

SEE ALSO
     tftp(1), inetd(8), pxeboot(8)

HISTORY
     The tftpd command appeared in 4.2BSD.

     The -s flag appeared in NetBSD 0.9A.

     The -c flag was added in OpenBSD 2.1.

BUGS
     This implementation of tftpd does not support blocksize negotiation (RFC
     1783), so files larger than 33488896 octets (65535 blocks) cannot be
     transferred.

     Many TFTP clients will not transfer files over 16744448 octets (32767
     blocks).

MirOS BSD #10-current		June 11, 1997				     1
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