Dualstack monitoring best practice

[Michael Friedrich]

Florian Lohoff wrote:
> Hi,
>
> i am thinking about the monitoring with dualstack targets/hosts. I'd expect
> all our hosts and services to be dual stacked or at least single stacked services
> to be the exception.
>
> So adding a v6 host for all v4 hosts seems so odd. I was thinking about adding
> some _v6address variable to all host definitions and defining v6 services using
> host HOSTADDRESS but _HOSTV6ADDRESS.

there's a patch for nagios around, adding address6 as host attribute. 
even if there are custom variables, it's more intentional for keeping 
the systems dualstacked in the future by adding that.
>
> In the end it would even be more natural to check_ping to check both address families
> if available and go to CRITICAL if one of them fails. In the end v6 should be a equivalent
> member of the family.
>
> Whats the preferred way people have chosen and what where the pitfalls?

i prefer check_multi, adding 2 checks, one ipv6, one ipv6 and combining 
the check result based on the expected output and state. some might have 
ipv6 testing only, but some are depending on a real dualstacked 
environment, so it's decision based then what overall status can be 
returned to the host. check_multi is rather easy to configure and extend 
and works well with pnp4nagios for some nice graphs too.

>
> Flo
>
>
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-- 
DI (FH) Michael Friedrich

Vienna University Computer Center
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