nmap

[Marc Powell]

> -----Original Message-----
> From: nagios-users-bounces at lists.sourceforge.net [mailto:nagios-users-
> bounces at lists.sourceforge.net] On Behalf Of Brian Loe
> Sent: Thursday, August 17, 2006 11:01 AM
> Cc: nagios-users at lists.sourceforge.net
> Subject: Re: [Nagios-users] nmap
> 
> Couldn't you write a script that diffs nmap results and report "0" if
> diff doesn't come back with anything and "1" otherwise? nmap could be
> cronned to run hourly - or so - and the results diffed with a baseline
> file resulting in the code which nagios can cat... or something.
> 
> Sorry, not a developer but this seems easy enough for someone who is,
> and I'd like to have it myself. :)
> 
> On 8/17/06, Hari Sekhon <hpsekhon at googlemail.com> wrote:
> > Robin-David Hammond%KB3IEN wrote:
> > > Has anyone used nagios to track changes in the open ports on
remote
> hosts?


/nagios-plugins-1.4.3/contrib. --

[contrib]$ ./check_nmap.py --help

check_nmap plugin for Nagios
Copyright (c) 2000 Jacob Lundqvist (jaclu at galdrion.com)
License: GPL
Version: 1.21

Usage: check_ports [-v|--debug] [-H|--host host] [-V|--version]
[-h|--help]
                   [-o|--optional port1,port2,port3 ...] [-r|--range
range]
                   [-p|--port port1,port2,port3 ...] [-t|--timeout
timeout]

Options:
 -h         = help (this screen ;-)
 -v         = debug mode, show some extra output
 -H host    = host to check (name or IP#)
 -o ports   = optional ports that can be open (one or more),
              no warning is given if optional port is closed
 -p ports   = ports that should be open (one or more)
 -r range   = port range to feed to nmap.  Example: :1024,2049,3000:7000
 -t timeout = timeout in seconds, default 10
 -V         = Version info

This plugin attempts to verify open ports on the specified host.

If all specified ports are open, OK is returned.
If any of them are closed, WARNING is returned (except for optional
ports)
If other ports are open, CRITICAL is returned

If possible, supply an IP address for the host address,
as this will bypass the DNS lookup.
--
Marc

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