NOTE: This tftp suite was neither compiled with readline support (license
      issues) nor with libwrap (TCP wrapper) support. 

      So when using tftp, you should configure your firewall properly to
      deny unauthorized access to your filesystem.

      It is recommended, that you always use the -s option of the tftpd
      server, to restrict the access of files to the given directory.

      Fore more information see in.tftpd(1M), inetd(1M).