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tftpd.8 2.4KB

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  1. .\" Copyright (c) 1983 The Regents of the University of California.
  2. .\" All rights reserved.
  3. .\"
  4. .\" Redistribution and use in source and binary forms are permitted
  5. .\" provided that the above copyright notice and this paragraph are
  6. .\" duplicated in all such forms and that any documentation,
  7. .\" advertising materials, and other materials related to such
  8. .\" distribution and use acknowledge that the software was developed
  9. .\" by the University of California, Berkeley. The name of the
  10. .\" University may not be used to endorse or promote products derived
  11. .\" from this software without specific prior written permission.
  12. .\" THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
  13. .\" IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
  14. .\" WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  15. .\"
  16. .\" @(#)tftpd.8 6.3 (Berkeley) 9/20/88
  17. .\"
  18. .TH TFTPD 8 "September 20, 1988"
  19. .UC 5
  20. .SH NAME
  21. tftpd \- DARPA Trivial File Transfer Protocol server
  22. .SH SYNOPSIS
  23. .B /etc/tftpd
  24. [
  25. .SM \-c
  26. <rootdir> ] [
  27. .SM \-d
  28. ] [
  29. .SM \-r
  30. <filter> ]
  31. .SH DESCRIPTION
  32. .I Tftpd
  33. is a server which supports the DARPA Trivial File Transfer
  34. Protocol.
  35. The TFTP server operates
  36. at the port indicated in the ``tftp'' service description;
  37. see
  38. .IR services (5).
  39. The server is normally started by
  40. .IR inetd (8).
  41. .PP
  42. The use of
  43. .I tftp
  44. does not require an account or password on the remote system.
  45. Due to the lack of authentication information,
  46. .I tftpd
  47. will allow only publicly readable files to be
  48. accessed.
  49. Files may be written only if they already exist and are publicly writable.
  50. Note that this extends the concept of ``public'' to include
  51. all users on all hosts that can be reached through the network;
  52. this may not be appropriate on all systems, and its implications
  53. should be considered before enabling tftp service.
  54. The server should have the user ID with the lowest possible privilege.
  55. .SH OPTIONS
  56. .TP
  57. .B \-c
  58. Pathname of a directory that is considered the rootdirectory for all
  59. transfers. N.B.
  60. .I tftpd
  61. does not actually perform a
  62. .IR chroot (2)
  63. call; you should be aware of the security implications and you
  64. probably should run the server from an unpriviledged account.
  65. .TP
  66. .B \-d
  67. Increased debugging level.
  68. .TP
  69. .B \-r
  70. Pathname of a file that is considered to be a filter program. Whenever
  71. a client tries to download this file, the filter will be started and
  72. its output is send to the client. An arbitrary amount of these
  73. filters can be specified.
  74. .SH "SEE ALSO"
  75. tftp(1), inetd(8)