safe_finger(8) - phpMan

SAFE_FINGER(8)                      Linux Programmer's Manual                      SAFE_FINGER(8)



NAME
       safe_finger - finger client wrapper that protects against nasty stuff from finger servers

SYNOPSIS
       safe_finger [finger_options]

DESCRIPTION
       The safe_finger command protects against nasty stuff from finger servers. Use this program
       for automatic reverse finger probes from the tcp_wrapper (tcpd) , not the raw finger  com-
       mand. The safe_finger command makes sure that the finger client is not run with root priv-
       ileges. It also runs the finger client with a defined PATH environment.  safe_finger  will
       also  protect  you from problems caused by the output of some finger servers. The problem:
       some programs may react to stuff in the first column. Other  programs  may  get  upset  by
       thrash  anywhere  on  a  line. File systems may fill up as the finger server keeps sending
       data. Text editors may bomb out on extremely long lines.  The finger server may take  for-
       ever because it is somehow wedged.  safe_finger takes care of all this badness.

SEE ALSO
       hosts_access(5), hosts_options(5), tcpd(8)

AUTHOR
       Wietse Venema, Eindhoven University of Technology, The Netherlands.




Linux                                     21th June 1997                           SAFE_FINGER(8)

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