[Nagiosplug-help] Fail to telnet NRPE port (5666)

[Guy Waugh]

Hi Eugene,

eugene wrote:
> Guy,
> 
> I got some question as below,
> 
>> On my hosts (RHEL3), I had to allow connections to NRPE from the 
>> Nagios host in /etc/hosts.allow, so TCP wrappers do seem to affect 
>> access to xinetd services (at least on RHEL3).
> 
> 
> - Do you mean i need to allow the IP of my nagios server?
> I had done it > ALL: X.X.X.X

OK, looks good.

> 
>> Looks good (I think)... how soon does the connection close after 
>> saying 'Connected to ...'? If it is immediately, it may be something 
>> like TCP wrappers, or the 'only from ...' line in your 
>> /etc/xinetd.d/nrpe file.
> 
> 
> It disconnetec after few seconds (3-5 sec)
> 
> 
>> Have you tried running the check_load command on the remote machine? 
>> Does it work?
> 
> 
> How to run it? what is the command? I thought it only can run on nagios 
> server?
> 
>> If it does, what happens when you call the 'check_load' command on the 
>> remote machine using check_nrpe on the Nagios host? Does it work?
> 
> 
> 1 more question,
> Do I need to install nagios plugins in Remote machine? Cause i only 
> install plugin in Nagios server

Ah-hah! Yes, you need to install the plugins on the remote machine. You 
don't have to install Nagios, just the plugins. This is necessary 
because NRPE on the remote machine executes the plugins on the remote 
machine.

HTH,
Guy.

> 
> Thanks for the reply again :) Still need ur help
> 
> Regards,
> Eugene
> 

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