Dualstack monitoring best practice

[Robert V. Bolton]

On Mon, Jan 9, 2012 at 7:26 AM, Florian Lohoff <f at zz.de> 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.
>
> 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?
>
> Flo
> --
> Florian Lohoff                                                 f at zz.de
>
>
Hi Flo,

At work we have started to go dualstack with all of our servers. Currently
our web servers are 100% dualstack so most of our monitoring dualstack
experience is based off of these servers. We have noticed that IPv4
connectivity is more important than IPv6 since a client is more likely to
have an IPv4 address than IPv6, also if a web client accesses a server over
IPv6 and the server doesn't respond on IPv6 it will timeout and fall back
to IPv4. I suggest that you monitor these ping check separately so that
you'll be able to troubleshoot where the problem is on the IPv4 side of the
IPv6 side. If you really want to monitor these together I would look into
clustering these two ping checks and set a warning if one of these fails.
Here is the info about check_cluster<http://nagiosplugins.org/man/check_cluster>

--
*Robert V. Bolton*
Email: robert at robertvbolton.com
Web: http://robertvbolton.com
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://www.monitoring-lists.org/archive/users/attachments/20120109/1f0ec253/attachment.html>
-------------- next part --------------
------------------------------------------------------------------------------
Ridiculously easy VDI. With Citrix VDI-in-a-Box, you don't need a complex
infrastructure or vast IT resources to deliver seamless, secure access to
virtual desktops. With this all-in-one solution, easily deploy virtual 
desktops for less than the cost of PCs and save 60% on VDI infrastructure 
costs. Try it free! http://p.sf.net/sfu/Citrix-VDIinabox
-------------- next part --------------
_______________________________________________
Nagios-users mailing list
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