distributed monitoring and passive host checks?

[Marc Powell]

> -----Original Message-----
> From: Demetri Mouratis [mailto:dmourati at cm.math.uiuc.edu]
> Sent: Thursday, October 16, 2003 10:55 AM
> To: Wolfgang Fellner
> Cc: nagios-users at lists.sourceforge.net
> 
> On Thu, 16 Oct 2003, Wolfgang Fellner wrote:
> 
> > hi list,
> >
> > i have running distributed monitoring setup since some weeks. all
works
> > good. the only problem i have is the host-state:
> > because of security-reasons i have no way to connect to the hosts
from
> > the central server. trought this the central server doesn't
recognize if
> > a host is down. and so the nagios-instance on the central-server
sends
> > critical-notifications for all services of the down host.
> > does anybody know a solution for this problem?
> >
> 
> Why not use passive checks?  I have a similar problem where my nagios
box
> is in the DMZ and therefore not allowed to open connections to the
private
> LAN.  So, I installed a second Nagios box, added nsca there, and send
the
> results from the LAN-->DMZ which is permitted under our security
policy.
> 
> I set all the host checks on the DMZ nagios box to check_dummy and use
the
> check_freshness setting to make sure the passive results show up on
the
> DMZ nagios instance at least once an hour.
> 
> Works like a charm.
> 
> See in general Nagios documentation on Passive Service Checks and
> Distributed Monitoring.

I think you've described exactly what he's doing, which does not include
passive host checks, which he's asking for. I've actually done the same
as you (except not even specified a host check command), but by doing
so, we lose all the benefits of the host checks like parenting,
unreachability, host dependencies, etc.

--
Marc


-------------------------------------------------------
This SF.net email is sponsored by: SF.net Giveback Program.
SourceForge.net hosts over 70,000 Open Source Projects.
See the people who have HELPED US provide better services:
Click here: http://sourceforge.net/supporters.php
_______________________________________________
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