This manual page documents the caretaker command.
caretaker is a program to monitor network services. caretaker uses nmap and ndiff to make network scans and to compare the results against a reference scan, e.g. from the day before.
This is intended as a negative monitoring system which informs about services and hosts going active which should probably not do so.
/etc/caretaker/caretaker.conf contains the variables for running caretaker. It understands the following settings:
The directory where the scan results are kept. Defaults to /var/lib/caretaker .
The path to the nmap executable. Defaults to /usr/bin/nmap .
The path to the ndiff executable. Defaults to /usr/bin/ndiff .
/etc/caretaker/caretaker.hosts contains the hosts and/or networks for caretaker to monitor. Values may be given as IP addresses in CIDR notation or what else nmap would accept as a valid scan target. The installation routine sets this to the network attached to the system.
This manual page was written by Christian Recktenwald <caretaker-contact@citecs.de> for the caretaker software and may be used by others. Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.1 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts and no Back-Cover Texts.
The newest version of caretaker can be obtained from http://www.fischglas.de/software/caretaker
caretaker is (C) 2003-2004 by Christian Recktenwald.
This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; Version 2. This guarantees your right to use, modify, and redistribute caretaker under certain conditions. If this license is unacceptable to you, citecs GmbH may be willing to sell alternative licenses. (contact <caretaker-contact@citecs.de>)
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details (it is in the COPYING file of the caretaker distribution).