Nagios communication - NRPE doubt

[Martin Melin]

That's because you're running nrpe with inetd and not as a standalone
daemon. inetd will use /etc/services and the nrpe.cfg entry won't have an
effect.

Regards,
Martin Melin

On Tue, Oct 20, 2009 at 7:04 PM, akp geek <akpgeek at gmail.com> wrote:

> Thanks so much Marc..
> I did the following
>
> 1. I changed the port in /etc/services to 5777
> 2. I disabled and enabled the service using
>         ./svcadm disable  /network/nrpe/tcp:default  and ./svcadm enable
> /network/nrpe/tcp:default
> 3. But I have not changed nrpe.cfg
>
> 4. From the nagios server I did the following and it worked
>     ./check_nrpe -H 10.112.161.130 -c check_users -p 5777
>
> It worked fine. confusing part is I did not have to change the nrpe.cfg
>
> Any suggestions, why it's working ?
>
> Regards
>
>
> On Tue, Oct 20, 2009 at 11:53 AM, Marc Powell <marc at ena.com> wrote:
>
>>
>> On Oct 20, 2009, at 10:32 AM, akp geek wrote:
>>
>> > Hi all
>> >                   I have a question on how NRPE works. I have
>> > installed Nagios on one server1 and Nrpe on server2. they are on the
>> > same subnet.
>> >
>> > the way I execute the commands on the server2 is  Server1:nrpe!
>> > commandonServer2
>> >
>> > It works fine now. both servers are on the same subnet. But if I
>> > would like to monitor a server outside the firewall, Is there
>> > particular port that needs to be opened or how does that
>> > communication work?
>>
>> Nagios calls check_nrpe locally which contacts NRPE on the remote host
>> on the port specified by the check_nrpe command line (look at the
>> command{} definition for nrpe). You can change the port that NRPE uses
>> in nrpe.cfg on the remote host. You'll also need to change the
>> check_nrpe command line to match. If the remote host is behind a
>> firewall that restricts access, you'll need to ensure that TCP access
>> to that port is permitted.
>>
>> --
>> Marc
>>
>>
>>
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>
>
>
> ------------------------------------------------------------------------------
> Come build with us! The BlackBerry(R) Developer Conference in SF, CA
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> developing skills, take BlackBerry mobile applications to market and stay
> ahead of the curve. Join us from November 9 - 12, 2009. Register now!
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