host-check on multi interface server
Markus Schencker
markus.schencker at schencker.de
Tue Feb 25 00:20:28 CET 2003
On Monday 24 February 2003 19:05, Rasmus Plewe wrote:
[...]
>
> Yes, but the disk1 could still be working and useful through other
> interfaces. So, you basically drop dead if any of your interfaces die,
> while I (see below) only drop dead if one specific interface dies.
> Which approach is more useful is, of course, open to discussion. ;-)
>
[...]
>
> - Advantage: First idea I got when setting this up. Seemed logical to
> me and does exactly what I want, which is monitoring the whole
> system, but also generating only one notification even if the
> machine dies completely.
Why does it generate just one notification? If you have 3 Interfaces and
defined an "interface" host object for each of it and 2 of the 3 are
unreachable you will get 2 notifications, right? Is there a way to deal the
combination of "server" host and depending "interface" hosts as one
notification destination unit?
> - Parent server: doesn't really matter. The most important one or the
> most stable one. In any case, if only one interface dies I've got a
> problem (in my setup). They are not for redundancy.
> In my case I put the parental host onto the administrative network,
> to minimize traffic for the production network.
As Jim P Carroll proposed I could put the FQDN instead of an IP address in the
"server" host so it depends on the DNS which IP address is chosen.
> - Services: On the parent host.
Or on the "interface" hosts if a service depends on a specific interface.
[...]
> , so when I can't
> simply get the interface up again I turn pale, start to reroute
> traffic and yell at the people in charge of replacing hardware...
Doesn't it call for scripting ;-)
Markus
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