Unable To Install Nagios Plugins
Padmanabh Padaki
padmanabh_padaki at gymboree.com
Thu Apr 14 02:13:50 CEST 2005
Thanks to everyone for providing the necessary information in the
installation of nagios. I am done with installing nagios
Installed nagios and plugins
Installed apache
Integrated apache with nagios
Made changes to configuration files, hosts.cfg, hostgroups.cfg, contact.cfg,
contactgroups.cfg and services.cfg
I can monitor PING, disk usage on the nagios server. I am on to the next
step. TO monitor disk usage(as an example) on a remote host.
Installed nrpe on the remote host.
Made changes to inetd.conf and services file.
Copied nrpe and nrpe.cfg to a different dir
Started inetd
On the Nagios server, copied the check_nrpe to the ../libexec directory
Added this new host to hosts.cfg and services.file to monitor the disk
usage.
Added the following lines to ../libexeccommands.cfg
define command{
command_name check_nrpe
command_line /usr/local/nagios/libexec/check_nrpe -H
$HOSTADDRESS$ -c
$ARG1$
}
When I login to the website and check for services.
I get an error message that the file system is not mounted or non-existent.
I have read the manual but somehow not able to find the answer
What am I missing?
Thanks
- padaki
-----Original Message-----
From: Subhendu Ghosh [mailto:sghosh at sghosh.org]
Sent: Tuesday, April 12, 2005 2:41 PM
To: Padmanabh Padaki
Cc: nagios-users at lists.sourceforge.net
Subject: RE: [Nagios-users] Unable To Install Nagios Plugins
On Tue, 12 Apr 2005, Padmanabh Padaki wrote:
> I was able to compile the plugins by using the source code without
> downloading the module from CPAN. If I look at CPAN module list, I find
that
> for Net::SNMP, the module is listed as
> Net::SNMP v5.0.1 D/DT/DTOWN/Net::SNMP
> v5.0.1 D/DT/DTOWN/Net-SNMP-5.0.1.tar.gz.tar.gz.
>
> I already have Net-SNMP-5.x.x installed on my system. Is this different
> from what I see on CPAN? Do I still need to install this perl module from
> CPAN?
These are two different projects and code set.
Net-SNMP from Sourceforge is a set of C based agent and manager apps.
It's original name was UCD-SNMP but the name was changed as the authors
are no longer affiliated with UCDavis. This set of code also has a perl
interface to the core functions that is present in the perl modules called
"SNMP" and it is distributed with the C apps.
Net::SNMP by David Town is an all Perl implementation of the manager
functionality of SNMP and is distributed thru CPAN only.
Unfortunately the NagiosPlugins project use both the packages.
check_snmp is dependent on the C apps and check_if*status/check_ups /etc
are dependent on the perl module.
It has been easier for use to develop functionality in perl and based on
usage start converting to C code for speed.
>
> A related question -
>
> After compiling the plugins without downloading the module from CPAN, the
> nagios daemon is not starting.
>
> Running in verbose mode, Nagios does not detect any problem with the
> configuration files. However,when I want to start the daemon, I get the
> following errors.
>
> [root at nagios modules]# service nagios start
> Starting network monitor: nagios
> No lock file found in /var/run/nagios.pid
>
> If I touch this file, then the error is
>
> [root at nagios local]# service nagios start
> Starting network monitor: nagios
> NAGIOS CRITICAL - could not find status log: /var/log/nagios/status.log
>
> If I touch the above file, then the error is
>
> [root at nagios run]# service nagios start
> Starting network monitor: nagios
> NAGIOS CRITICAL - could not find proc file: /proc/1836672814
>
> - padaki
normally Nagios will create its own nagios.pid and status.log files - you
should not have to touch them. This seems to point to some permisssion
issues.
If you installed from RPM - make sure that the rpm created the appropriate
user/group entries and changed ownership of the direcotries.
Also with Fedora 3 - if you are using SELinux - you may have to add some
entries to configure SELinux...
--
-sg
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