multiple IPs for a host?

[Anthony Montibello]

We are doing something similar at my company by defining a second 
check_ping service check in the checkcommands.cfg
command_name check_ping2
command_line $USER1$/check_ping -H $ARG1$ -w $ARG2$ -c $ARG3$ -p 3

instead of just using check_ping with the $HostAddress$ it uses
whatever IP you pass to it.  From your description it sounds like you
do not want to modify your host IP, because your host would not be
down on a failed ping, the interface to the production network may be
down but not the host. (Host checks are only executed if a service
check fails so having the check in a host check only will not help if
all the services on the management network are in an OK state when the
production IP goes down)

The disadvantage of adding a second ping service check like this is
more typing and more prone for inconsistencies if things change on the
network.  However the advantage is you can have as many ping checks
registered to a single host as you want.
(Using this also assumes that your nagios server is also on both networks.)

Another alternative solution might be to have your production hosts do
a passive check ping to their router or firewall and send that result
to the nagios server to be monitored.

Good Luck
Tony

On Mon, 17 Jan 2005 16:08:44 +0000, Andy Smith <andy at strugglers.net> wrote:
> Hi,
> 
> We have a production network and a management network, with all our
> administrative traffic going over the management network and every
> production server having at least two interfaces.
> 
> We don't want to have nagios only monitor across one of the networks
> though, because then we run the risk (however minor) of a network
> problem isolating all our servers from the outside world while
> nagios happily reaches them over the management network and does not
> warn us.
> 
> So, what I would like to do is have nagios ping the production IP
> but do all the other service checks over the management IP.
> 
> Is it possible to define a host as having two addresses and have
> nagios ping one but do service checks on the other?  Or will every
> host need to be split into two hosts so that one of them can have
> the production address and be set as parent for all the others?
> 
> Cheers,
> Andy
> 
> 
>


-------------------------------------------------------
The SF.Net email is sponsored by: Beat the post-holiday blues
Get a FREE limited edition SourceForge.net t-shirt from ThinkGeek.
It's fun and FREE -- well, almost....http://www.thinkgeek.com/sfshirt
_______________________________________________
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