Local firewall changes on Nagios core server

Assaf Flatto nagios at flatto.net
Mon Feb 22 12:37:32 CET 2010


Jerry Joy wrote:
> Hi,
>
> I have setup a Nagios server on RHEL 5 and it has the local firewall 
> "ON". What exactly are the changes required on the local firewall so 
> that Nagios core server is able to accept reports from NRPE and 
> NSClient++ agents. I don't see a fixed port used by Nagios core.
>
> Thanks,
> Jerry
Nagios does not need a specific port to send out on , unless you use 
NSCA , then you will need to open  the ports for the NSCA daemon .

The NRPE and NSClient++ ports need to be open on the client machines - 
not on the Core server .

If your machine is behind the company firewall - and not accessible from 
the web , you may want to disable the firewall on the local machine.

Assaf

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