Plugin works interactively but not in Nagios

Tom DE BLENDE Tom.DeBlende at dhl.com
Mon May 12 14:21:35 CEST 2003


Try this instead:

$USER1$/check_http -S -I $HOSTADDRESS$ -p $ARG1$ -a "$ARG2$"

check_https!6666!user:pass

Jeff Mercer wrote:
> I've got Nagios 1.0 running on a RedHat 8.0 x86 system. It's working
> quite nicely though I have a lot of tweaking to do to the configs before
> moving it into production. I'm using the Nagios Plugin set 1.3 installed 
> via RPM.
> 
> Here's my issue: I have several checks that always return an error code 
> when they are performed by the Nagios daemon. Yet when executing the
> exact same command interactively, the check works fine. I'm doing the
> interactive check from the actual system running the Nagios software,
> and even using the Nagios account itself.
> 
> The plugin in question is "check_http". Here's the command that works
> fine interactively:
> 
>   check_http -S -I x.x.x.x -p 6666 -a user:pass
> 
> Here's a typical result:
> 
>   HTTP ok: HTTP/1.0 200 OK - 0.102 second response time |time= 0.102
> 
> Yet when I define a check command such as this:
> 
>   $USER1$/check_http -S -I $HOSTADDRESS$ $ARG1$ $ARG2$ $ARG3$ [etc]
> 
> And then invoke it in a service check like this:
> 
>   check_https!-p!6666!-a!user:pass
> 
> The check always fails with the error message "Socket timeout after 10 
> seconds". When doing a similar check against the same remote system but 
> on a different port, I get the error message "Unable to open TCP socket".
> 
> What's really frustrating is not being able to see exactly what command 
> Nagios actually forks when it does the check. I'm pretty sure it must be 
> munging something in the check command. Though i get absolutely no 
> errors when starting/restarting nagios.
> 
> The only other unusual thing is this issue only seems to happen when 
> checking that particular remote system. I'm doing http and https checks 
> on a number of other systems and get normal results. I've already 
> confirmed it's not a firewall issue.
> 
> Any suggestions on how to trouble shoot this, or folks who've seen 
> similar problems? Any assistance would be greatly appreciated!
> 
> 
> 
> 
> 
> -------------------------------------------------------
> Enterprise Linux Forum Conference & Expo, June 4-6, 2003, Santa Clara
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> www.enterpriselinuxforum.com
> 
> _______________________________________________
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> Nagios-users at lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/nagios-users
> ::: Please include Nagios version, plugin version (-v) and OS when 
> reporting any issue. ::: Messages without supporting info will risk 
> being sent to /dev/null



-------------------------------------------------------
Enterprise Linux Forum Conference & Expo, June 4-6, 2003, Santa Clara
The only event dedicated to issues related to Linux enterprise solutions
www.enterpriselinuxforum.com

_______________________________________________
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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





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