added host not appearing in web interface

[Daniel Tuecks]

Hi Andrew,

wheater the NRPE daemon is running or not has nothing to do with your
host not appearing in the WebUI. In fact, it would be a little silly
if a host is only shown if its reachable ;) First check that Nagios
actually reads your config file (nagios.cfg: cfg_file/cfg_dir
parameters). Be sure you have defined that host in your nagios config
with at least one service (define host { .... }; define service { ....
}).  Also make sure your host/service definition has no "register 0"
parameter and that your user is allowed to see the host (by a
contact(group) or via "authorized_for_all_hosts" parameter in
cgi.cfg).

Daniel

2011/6/10 Kaplan, Andrew H. <AHKAPLAN at partners.org>:
> Hi there --
>
> We are running Nagios 3.1.2 with the NRPE 2.12 client on our systems. We
> recently installed the VirtualBox application
> on one of our monitored systems, and have Ubuntu 10.04 LTS 64-bit as the
> guest operating system. We want to monitor
> the disk usage, processes, mysql server, and rsyslogd daemon on the virtual
> machine, so the NRPE client was installed
> and configured to start on system boot. After that was done, the appropriate
> changes were made to the various config files
>
> on the Nagios server. The virtual machine and Nagios server were rebooted,
> in that order, after the changes were made.
>
> When going through the web interface on the Nagios server, the virtual host
> does not appear listed in any of the pages.
>
> I confirmed the nrpe daemon was operational on the client, and also verified
> that port 5666 was open, and the firewall on the
>
> client was deactivated. The nrpe daemon is run via the /etc/rc.local file
> using the following command syntax:
>
> /usr/local/nrpe/bin/nrpe -n -c /usr/local/nrpe/etc/nrpe.cfg -d
>
> I checked the Nagios server, and confirmed the virtual host was listed in
> the /etc/hosts as well as the nagios configuration
>
> files. The nslookup command, run on server and client, confirmed the
> presence of the virtual host in the DNS database.
>
> What would cause the client not to appear in the Nagios web interface, and
> how can I correct it?
>
> Thanks.
>
>
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