tftpd.tproj/tftpd.8

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  32 .\"     @(#)tftpd.8     8.1 (Berkeley) 6/4/93
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  34 .Dd June 4, 1993
  35 .Dt TFTPD 8
  36 .Os BSD 4.2
  37 .Sh NAME
  38 .Nm tftpd
  39 .Nd
  40 Internet 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
  48 is a server which supports the
  49 Internet Trivial File Transfer
  50 Protocol (\c
  51 .Tn RFC 783).
  52 The
  53 .Tn TFTP
  54 server operates
  55 at the port indicated in the
  56 .Ql tftp
  57 service description;
  58 see
  59 .Xr services 5 .
  60 The server is normally started by
  61 .Xr inetd 8 .
  62 .Pp
  63 The use of
  64 .Xr tftp 1
  65 does not require an account or password on the remote system.
  66 Due to the lack of authentication information,
  67 .Nm tftpd
  68 will allow only publicly readable files to be
  69 accessed.
  70 Files containing the string ``/\|\fB.\|.\fP\|/'' are not allowed.
  71 Files may be written only if they already exist and are publicly writable.
  72 Note that this extends the concept of
  73 .Dq public
  74 to include
  75 all users on all hosts that can be reached through the network;
  76 this may not be appropriate on all systems, and its implications
  77 should be considered before enabling tftp service.
  78 The server should have the user ID with the lowest possible privilege.
  79 .Pp
  80 Access to files may be restricted by invoking
  81 .Nm tftpd
  82 with a list of directories by including up to 20 pathnames
  83 as server program arguments in
  84 .Pa /etc/inetd.conf .
  85 In this case access is restricted to files whose
  86 names are prefixed by the one of the given directories.
  87 The given directories are also treated as a search path for
  88 relative filename requests.
  89 .Pp
  90 The options are:
  91 .Bl -tag -width Ds
  92 .It Fl l
  93 Logs all requests using
  94 .Xr syslog 3 .
  95 .It Fl n
  96 Suppresses negative acknowledgement of requests for nonexistent
  97 relative filenames.
  98 .El
  99 .Sh SEE ALSO
 100 .Xr tftp 1 ,
 101 .Xr inetd 8
 102 .Sh HISTORY
 103 The
 104 .Nm
 105 command appeared in
 106 .Bx 4.2 .