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  man pages->Tru64 Unix man pages -> tftpd (8)              



NAME    [Toc]    [Back]

       tftpd  -  The  DARPA Trivial File Transfer Protocol (TFTP)

SYNOPSIS    [Toc]    [Back]

       /usr/sbin/tftpd [-b]  [-d]  [-r  pathname]  [-t  interval]

OPTIONS    [Toc]    [Back]

       Instructs  tftpd  to  not  respond  to broadcast requests.
       Specifies that the name of the file and other debug information
  is  sent to syslogd.  Specifies the relative pathname
 a user can specify to transfer a  file  that  has  no
       path associated with it.  For example, -r /tmp/tftp causes
       /tmp/tftp to be prefixed to a file that has  no  path  and
       the  file  is  copied to and from the directory /tmp/tftp.
       Only one directory path can be specified with this option.
       Specifies the amount of time, in seconds, that tftpd waits
       before it recognizes a connection  timeout.   The  default
       interval is 25 seconds.

DESCRIPTION    [Toc]    [Back]

       The  tftpd  daemon  is  a  server  that supports the DARPA
       (Defense Advanced Research Projects Agency)  Trivial  File
       Transfer  Protocol  and  complies with RFC-1350, RFC-1782,
       and RFC-1783.  The TFTP server operates at the port  indicated
 in the tftp service description; see services(4) for
       more information. The server is normally started by inetd.

       Using  the  tftp  command  does  not require an account or
       password on the remote system. Due to the lack of  authentication
  information,  the  tftpd  daemon will allow only
       publicly readable files to be accessed.  Files  containing
       the  string  /../  or starting with are not allowed. Files
       can 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 implication 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  the  tftpd
       daemon  with a list of directories and including pathnames
       as server program arguments in the  /etc/inetd.conf  file.
       In  this  case,  access is restricted to files whose names
       are prefixed by the one of the given directories.

       The tftpd daemon validates the files that it has to transfer
 against the /etc/tftptab file. If you are transferring
       files that are not publicly readable or not in the  directories
  listed  on the command line, you must make certain
       that those files are listed in the /etc/tftptab file.

       The tftpd daemon also supports the TFTP  blocksize  option
       and  option  extension  that  enables it to transfer files
       using blocksizes greater than 512 bytes (maximum is  65464

RESTRICTIONS    [Toc]    [Back]

       The maximum number of directories allowed in the directory
       list are 62.  The  maximum  number  of  files  allowed  in
       /etc/tftptab file is 256.

FILES    [Toc]    [Back]

       Specifies the command path.

SEE ALSO    [Toc]    [Back]

       Commands: tftp(1)

       Daemons: inetd(8)

       RFC  1782,  TFTP  Option  Extension; G. Malkin, A. Harkin;
       March 1995.

       RFC 1783, TFTP Blocksize Option;  G.  Malkin,  A.  Harkin;
       March 1995

[ Back ]
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