how to string commands?

[Thomas Slutyer]

>> I am defining a template for my linux machines. I'd like the
>> check_command for that template to have it check ping, local
>> drive, pop, httpd, etc.... How can I string them together?
>> Would something like this
>> work:
>>
>> check_command check-host-alive; check-pop; etc..
>>
>> or do I need to use commas or is this completely illegal?
>
> It won't work.  Each check commad can only have one result.

Whereas Nagios' syntax will not allow for such trickery, you -could- 
however make a composite check script yourself. Just create a shell 
script that calls all of the checks you want to perform and let the 
script decide on the exit code and alarm message, based on the output 
of the other checks.

This way I've create "real" service checks for our SMTP environment for 
example. Why? Because a mail environment is more than just a running 
SMTP daemon. My script checks:
* Are the main SMTP VIPs (Virtual IPs) available in DNS?
* Is the load balancer running the VIP properly?
* How many SMTP servers out of our complete pool are up and available 
for SMTP?
* Are we able to connect to send a message.

That way you can safely say that service X works properly :)

Cheers!


Thomas


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