check_icmp/check_ping trigger values

[Andreas Ericsson]

frank wrote:
> 
> Is this behavior documented anywhere other than in the source code?

Nopes. I'm still working out the "FreeBSD-server-in-weird-network" 
kinks, so I haven't gotten round to writing a README yet. It's also 
highly untested, although the theory is sound.

> I've been grepping thru my copy of nagios-cvs and nagios-plugins-1.4 (which 
> also contain their respective docs) and the only reference I've come 
> across is:
> 
> plugins/check_icmp.c:   else if(!strcmp(progname, "check_host")) {
> 
> This would seem to be a very important configuration setting. Maybe I 
> just missed it.
> 

Probably not. I don't know if I've mentioned it before. Feel free to 
give it a try though, and please report back with how it works. A nice 
opportunity for anyone to be an alpha-feature tester.

> -frank
> 
> 
> On Thu, 17 Feb 2005, Andreas Ericsson wrote:
> 
>> Date: Thu, 17 Feb 2005 18:18:21 +0100
>> From: Andreas Ericsson <ae at op5.se>
>> To: nagios-users at lists.sourceforge.net
>> Subject: Re: [Nagios-users] check_icmp/check_ping trigger values
>>
> [snip]
> 
>>
>> Short answer (read archives for longer one);
>> For service checks, these values should work in most networks with 
>> normal-to-high load.
>> check_icmp -H $HOSTADDRESS$ -w 200.0,40% -c 500.0,60% -i 200ms
>> max_check_attempts 3
>>
>> For host checks;
>> # ln -s check_icmp check_host
>> check_host -H $HOSTADDRESS$ -i 0.5s -p 10 -t 20
>> max_check_attempts 3
>>
>> check_icmp returns immediately upon any received packet when called as 
>> check_host, so it's safe to use a higher packet count and timeout and 
>> lower the max_check_attempts accordingly (it won't let nagios sit and 
>> wait as check_ping does).
>>
>> Remember that check_icmp must be setuid root to work properly on 
>> nearly all linux boxen.
>>
> 

-- 
Andreas Ericsson                   andreas.ericsson at op5.se
OP5 AB                             www.op5.se
Lead Developer


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