[Possible Spam] - Re: host down but up problem

[Christopher Smith]

Andreas, et al:

Thank you for your assistance in this matter. The steps listed below
provided the necessary link. While I was changing the permissions on the
"/usr/lib/nagios/plugins/check_icmp," it also needed to be set at the
"/usr/local/nagios/libexec/check_icmp" (or maybe that is where I should
have been initially).

Again, thank you. 


 


-----Original Message-----
From: nagios-users-admin at lists.sourceforge.net
[mailto:nagios-users-admin at lists.sourceforge.net] On Behalf Of Andreas
Ericsson
Sent: Saturday, February 12, 2005 2:52 AM
To: nagios-users at lists.sourceforge.net
Subject: Re: [Possible Spam] - Re: [Nagios-users] host down but up
problem

Christopher Smith wrote:
> Okay, so I am having this problem with the Check_Icmp plugin.
> 
> If I run the check_icmp as the default nagios user account, I receive 
> a status information message in Nagios stating that 'Root access 
> needed (for raw sockets)' is necessary. Yet, as stipulated by 
> another's post, it runs as root, no problem. I have verified that the 
> permissions (from
> Linux) are set correctly.
> 
> This is 1.4.x of the plugins running on SuSE 9.1 and Nagios 1.2.
>  
> How does one get around this?
> 

Nagios doesn't run it as root, so it needs to be setuid 0 to get access
to raw sockets and send ICMP messages. The following commands should get
it working for you.

su - root
chown root:root /usr/local/nagios/libexec/check_icmp
chmod 4755 /usr/local/nagios/libexec/check_icmp
su - nagios
/usr/local/nagios/libexec/check_icmp -H localhost

> 
> 
> 
> -----Original Message-----
> From: nagios-users-admin at lists.sourceforge.net
> [mailto:nagios-users-admin at lists.sourceforge.net] On Behalf Of Andreas

> Ericsson
> Sent: Wednesday, February 09, 2005 7:38 AM
> To: nagios-users at lists.sourceforge.net
> Subject: [Possible Spam] - Re: [Nagios-users] host down but up problem
> 
> Serveur-Faucon Surveillance wrote:
> 
>>Hi all,
>>
>>I have been using Nagios for quite a while now over 2 years, so I am 
>>pretty familiar with it.
>>
>>One of my host recently went to a down state on the network status, 
>>but is actually UP. This is not FAQ F0015 or F0016 related, since the 
>>same command is used by all other hosts (and they are just fine).
>>
>>I use the check_host_alive default command to check on hosts status 
>>(yeah I know, I dont use the hip (new, cool) check_icmp from Andreas 
>>Ericsson for now. Later)
>>
> 
> 
> Don't know about hip and cool, but you're probably better off without 
> it. "Don't fix it if it ain't broken".
> 
> 
>>So I went to my console to try a couple of things... ping myhost = ok!
> 
> 
>>check_ping -H myhost etc etc = ok! (exactly like the
>>check_host_alive)
>>
>>So... my next theory would be to erase everything from that host in 
>>the history, and start over. But before that, is there someone who 
>>actually had something like that?
>>
>>There was the bug witch two nagios process could run at the same time,
> 
> 
>>but that's not it. Thanks!
>>
> 
> 
> This can happen properly when the host starts flapping while down and 
> comes out OK on the other end of the flapping. Assuming you aren't 
> running 2.0 with f among your notification_options, ofcourse.
> 

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


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Read honest & candid reviews on hundreds of IT Products from real users.
Discover which products truly live up to the hype. Start reading now.
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_______________________________________________
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Nagios-users at lists.sourceforge.net
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::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. 
::: Messages without supporting info will risk being sent to /dev/null