chekinging non-open ports... Is it possible ????

[Rasmus Plewe]

On Wed, Feb 26, 2003 at 12:16:38PM +0100, le jert wrote:
> 
> In order to check firewall security, I would like to know how I can check if 
> certain ports are closed (and not open, as usually). I mean writing 'ok' for 
> the service if ports 80,23,... are closed.

/path/to/nagios/libexec/negate -v


Rasmus


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