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From: wolf@grasp1.univ-lyon1.fr (Christophe Wolfhugel)
Newsgroups: comp.unix.questions
Subject: Finger logger (was: Re: Finger logger: several questions)
Message-ID: <1991Apr14.140228.16719@grasp1.univ-lyon1.fr>
Date: 14 Apr 91 14:02:28 GMT
References: <41042@netnews.upenn.edu> <1991Apr13.025815.3741@agate.berkeley.edu> <14486: Apr1303:45:5691@kramden.acf.nyu.edu>
Organization: INSA Departement Informatique, Lyon, France
Lines: 20

[I post this as it might be of general interest]

I've written a small program that monitors telnetd/rlogind on a SVR3.2 and
it should be easy to adapt it to monitor the finger port.

How it works:
  - started by inetd instead of the usual daemon
  - issues a gethostbyaddr and if it succeed a gethostbyname to check the
    reverse mapping
  - gives control to the system daemon (rlogind, telnetd or whatever you want).
  - Administrator is free to choose any action if the DNS resolution fails.

For people interested, you can FTP anonymously the package at host
grasp2.univ-lyon1.fr (134.214.100.33): /unix/comm/secured100.tar.Z

-- 
Christophe Wolfhugel (on irc: Zolf)  |  Email: wolf@grasp1.univ-lyon1.fr
INSA Lyon - Departement Informatique |  "Lapalisse au bordel: la duree de"
69621 Villeurbanne Cedex             |  "l'attente est fonction de la longueur"
France                               |  "de la queue."