Thanks for the responses. I hadn't thought about the scope of the problem
(ie that each plugin would potentially need to be modified).
I think the scope could be somewhat contained by just modifying
check_nrpe; that's the only plugin that relies on the client allowing a
certain IP address.
Right now, I think I'll just not worry about it too much, and change the
nrpe.conf configuration on the clients when/if we have to.
Paul
On Wed, 10 May 2006, Steve Shipway wrote:
I'd like to give my Nagios server a virtual IP address, so that if we
want to migrate the monitoring service to another machine in the
future, it'll be easy (just setup the new machine and give
it the same virtual IP).
...
This is a tricky issue. First of all I must assume you are
referring to the actions taken by the various checks. These
are in fact regulated by the individual plugins so there is
not a single way to solve this.
I understand what you're trying to achieve - just set up a single ACL on
your routers (for example) and have the Nagios service always query from
this (virtual) IP, wherever it actually lives.
For reasons stated before, this is almost impossible. The only way I can
think of doing it is to set up a route definition on the Nagios host
directing all traffic via the virtual IP, although that is rather messy.
Here, we have Nagios on a virtual IP moving between two linux-ha hosts.
NSCA listens to a port on the virtual IP. However, Nagios will query from
the physical IP of whichever host it is on, so we have had to set up both
physical IPs in the ACLs.
I suppose you could set up a special subnet for your monitoring servers, and
set your ACLs to allow that subnet. Or, if only certain checks (SNMP?)
require this source IP, you might be able to modify the appropriate plugins
to specify source route. However, it doesnt seem feasible to do it for all
the plugins.
Steve
-------------------------------------------------------
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--
----------
# pwd
/loony/bin
----------
-------------------------------------------------------
Using Tomcat but need to do more? Need to support web services, security?
Get stuff done quickly with pre-integrated technology to make your job easier
Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642
_______________________________________________
Nagios-users mailing list
[email protected]
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
