The use of option : use_aggressive_host_checking=1
in the nagios.cfg file will make any difference???
Sujith
Bangalore
On 2/28/07, Andy Shellam (Mailing Lists) <
[EMAIL PROTECTED]> wrote:
sujith h wrote:
I think i foregot to explain a crucial point that nagios is running in my
router not in my
machine. If i had told u my machine, then I really apolagise for stealing
your precious
time.
No, I understand that.
And is there anyway that I can trigger the check_uptime (plugin written by
me)
all the time when the router is up???
Yes. Define it as a service for your host that runs, say, every 5 minutes
24x7.
. If so please do tell me. If the router is down and
nagios doesnt run then its ok for me. Since that is a different issue. But
from your reply
I came to understand that check_uptime will be called for the first time
when the nagios
is started and then if any of the services fails then again the
check_uptime is called.
Yes. Nagios only checks a host status when it absolutely needs to, not
any other time. This is usually when a service fails, or a network blockage
is detected. check_ping to 127.0.0.1 on this check would work fine in
your case.
Andy.
Sujith
Bangalore.
On 2/28/07, Andy Shellam (Mailing Lists) <
[EMAIL PROTECTED]> wrote:
>
> Again, as I and Patrick have said, your host's check_command is only
> getting run when a service is deemed to have problems.
>
> You're getting the difference in the uptime output in Nagios and the
> console because Nagios hasn't run the uptime command for the host for over a
> day.
> If you're not retaining status information, then when you restart
> Nagios, it re-runs all it's checks, hence why it then gets updated. After
> that it is only run when a service fails.
>
> What I still don't understand is how your uptime command ensures the
> router is up? If the router is not up, then Nagios won't be running (as
> you're running it on the same host) so it seems quite pointless really. If
> the Lanlink checks that the LAN interface is up and connected - that makes
> sense, but then a check_ping to 127.0.0.1 as your host check_command
> would give the same result as the uptime, then you could have an "Uptime"
> service with your check_uptime command.
>
> That way you could be confident that the status detail in Nagios is
> reasonably up-to-date.
>
> Andy.
>
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