Nagios is a powerful monitoring system that enables organizations to identify and resolve IT infrastructure problems before they affect critical business processes.

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165 views

Use Nagios hostgroups in check_cluster --service check?

Is there a way to use hostgroups within a check_cluster --service check? I've only seen examples that list out each host in the cluster individually like this: define service{ ... ...
2
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1answer
244 views

Redundant monitoring with Nagios

I am working with Nagios 4.0.7 on two servers to monitor my network. Recently I developed the third one in order to have more redundancy so I start reading information about failover redundancy mostly ...
1
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1answer
1k views

Nagios CHECK_NRPE: Error receiving data from daemon. RHEL 6

So I'm trying to set up a Nagios check_load service on a Red Hat server. I followed the documentation from Red Hat to install the NRPE client: ...
0
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1answer
98 views

Nagios: Specify a contact group for a whole host group?

I'm migrating a config from a very old version of Nagios (1.5 something I think) to Nagios 3.5.1. The config I'm moving has contact groups specified for the host groups. The new Nagios says Error: ...
8
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2answers
295 views

Is it reasonable to use Nagios to check that a service is NOT available?

Suppose I have a server with a private interface and a public interface. Public might have things like HTTP(S) servers, private might have MySQL and SSH. Obviously Nagios is useful to check that the ...
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0answers
58 views

PNP4Nagios graphs page customization - graphs in columns

I am trying to customize page with with graphs of pnp4nagios, because I want to make a set of graphs which I will use on my wall TV/monitor. But there is a lot of space left on right side, so I want ...
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1answer
64 views

Monitoring root certificate

For enterprise wide systems wherein SSL certs are utilized, what is the best way of monitoring root CAs or intermediate CAs? If the systems were on Linux OS. Are there nagios checks that can catch ...
0
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1answer
371 views

check_mysql_query cannot connect to mysql, but works from the command line

I have Nagios 3 running on Debian Wheezy. I am able to run the query the following query from the command line. The credentials for the mysql db are stored in ~nagios/.my.cnf nagios@intranet:~$ ...
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2answers
2k views

Allowing nagios plugin check_dhcp to work without setuid root

Nagios has a plugin, check_dhcp, that does exactly what you'd think. It's widely suggested to install it setuid root, because it uses SO_BINDTODEVICE, which usually only root can do. Of course a ...
0
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1answer
310 views

check_http!--ssl actually checks http

When monitoring the SSL service on a host that runs HTTPS but not HTTP, Icinga warns about a 403 Forbidden return code. But that warning is for HTTP, not HTTPS. Manually running the check_http ...
-1
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1answer
284 views

Nagios Schedule a Check on Command Line

I use Nagios Core 3.5.1. In order to skip the HTTP authentication (guest user without password could also be tedious), I turn off the Nagios authentication based on this article. (even though turning ...
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0answers
31 views

How to monitor primary and backup nodes

Currently we are running Nagios 3 on Linux which monitors Node-A (Primary) . As part of a new requirement (Geo-cluster support), we introduced a Backup Node (Node-B) for above primary node so that ...
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1answer
191 views

Nagios plugin check_snmp_int does not match regular expression

I am using nagios plugin check_snmp_int with -n switch. Help show: -n, --name=NAME Name in description OID (eth0, ppp0 ...). This is treated as a regexp : -n eth will match eth0,eth1,... ...
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1answer
60 views

icinga nrpe executes locally instead of server

I am very new to icinga. In fact I finished setting it up today. I am trying to monitor a bunch of stuff on my nrpe machines. I set up my services in /etc/icinga/objects/my.server.com.cfg and ...
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0answers
177 views

Nagios 3.5 can't send notification email despite nagios logs ok / centos6

I spent hours trying to make nagios send email notification. my contact configuration is quite simple : I juste have one : nagiosadmin, and he is the default contact. In /var/log/nagios.log, nagios ...
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0answers
85 views

icinga-web not updating icinga status properly

I have a problem similar to this one... if you look at the photo there, you'll see that the icinga server is marked as down. I checked everything according to the answer given there, but it has ...
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votes
2answers
261 views

Truncating return data as it is bigger then NRPE allows

I'm using latest NSCLIENT on a Win Server 2012, and see: Truncating return data as it is bigger then NRPE allows in the log file. How can I fix this?
3
votes
1answer
838 views

Overriding Nagios hostgroup service with host service

I currently am experimenting with defining a set of services to all hosts in a hostgroup, this is working fine. My issue is that I then want to be able to override these service definitions which ...
1
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1answer
99 views

Nagios check fails: UWSGI CRITICAL: could not connect() to workers Operation now in progress

All seems to be installed and work as it should (site/server is running) but keep getting this error: UWSGI CRITICAL: could not connect() to workers Operation now in progress when running: uwsgi ...
2
votes
1answer
187 views

Why isn't snmptt translating this trap?

I have a device that is sending snmp v1 traps and snmptt cannot translate them. To grab a copy of the trap, I stopped the snmptt service, and copied the trap to /tmp. The OID I'm trying to trigger ...
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vote
2answers
104 views

Orthogonally defining services and contacts for a host/hostgroup?

I'm trying to turn our Icinga spaghetti into something more manageable and less repetitive. So far features like templates, object inheritance, multiple inheritance, hostgroups, servicegroups, etc ...
2
votes
1answer
298 views

How to test nagios send_nsca with netcat

I am trying to write a unit test of send_nsca using nc but it is failing. I want to start nc to listen to the nsca port and then use send_ncsa to send a message to that port. In one terminal I am ...
4
votes
1answer
202 views

Custom nagios command, append $HOSTADDRESS$

I'm very new to nagios, and trying to get a custom command to bend to my will. I have looked through various examples, and can't find anyone appending the $HOSTADDRESS$ macro, so maybe I have to go ...
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0answers
192 views

'check_tomcat.pl' plugin returning CRITICAL: /manager/status?XML=true HTTP/1.1 404 Not Found

I don't know what I'm doing wrong. I'm trying to use this plugin, check_tomcat.pl but it doesn't seem to be configured correctly. Keeps returning the error: CRITICAL: ...
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1answer
482 views

Nagios nrpe check_nrpe plugin missing [closed]

installed nagios nrpe into remote machine from ubuntu repository sudo apt-get install nagios-nrpe-server and plugins as sudo apt-get install nagios-plugins-basic nagios-plugins ...
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1answer
104 views

Nagios check_snmp (New Response) CRITICAL 7

I have got a new critical figure / output as 7 SNMP CRITICAL - *7* What does above 7 refer to?
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0answers
193 views

Percona-Nagios-Plugins: pmp-check-mysql-status not showing information properly, what could be the cause?

I've downloaded Percona's Nagios monitoring tools and started setting them up, but I have some problem with one of the checks (the only one I've tried so far). I have this command in ...
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0answers
93 views

Nagios sends out emails with Attachments

I use NSCLIENT to run a custom powershell script that echos a few lines of text. From what I noticed, after echoing more than 2 lines, the alerts received via email from Nagios have the body empty and ...
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0answers
17 views

CheckMK template does not show up

I following this checkmk guide to monitor disk parameters: http://dev.vemarsas.it/documents/32 I restarted the nagios multiple times and rescanned the hosts. Any idea why?
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1answer
116 views

Setting downtimes in Nagios/Icinga via SCCM

At our company we have quite a lot of Windows 2012/2008 servers which are updated automatically (and sometimes rebooted) via SCCM. All our servers are monitored via Icinga/Nagios. If the servers are ...
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1answer
7k views

“CHECK_NRPE: Socket timeout after 10 seconds” HTTPS / SSL

I have configured NAGIOS server on IP address AA.BB.CC.DD (Linux Fedora 20), and Monitoring the host with IP address LL.MM.NN.OO (Linux Fedora 20). I have configured NRPE to run on port # 15666 ...
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0answers
68 views

Nagios external commands getting processed intermittently

I have a script that runs every 10 mins that updates the Host Comments field in Nagios. There are about 600 hosts and I am seeing some issues. The script deletes the previous comments and adds new ...
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0answers
39 views

Icinga Performance issue when using many service groups

We have an Icinga installation with more than 3k active service checks. Performance is acceptable. We're already using the use_large_installation_tweaks option. We have now started to build a ...
0
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1answer
79 views

Debug a Nagios NRPE command

My nagios fail with fail2ban service. Whith an other command it's Ok: nagios@server:/usr/lib/nagios/plugins$ /usr/local/nagios/libexec/check_nrpe -H 127.0.0.1 -c "check_load" OK - load ...
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0answers
63 views

NagiosXI: Changing default view of performance graphs

I have been using NagiosXI and in order to display performance graphs, it comes with two utilities- Graph Explorer and pnp4nagios. By default, pnp4nagios would show the details in 24-Hour view. How ...
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1answer
97 views

Nagios change threshold values

I'm using nagios checkmk 1.2.2 to monitor some hosts. How can I adjust specific smart values per host so they won't create a critical alert? For example: CRIT - Reallocated sectors: 2CRIT I only ...
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0answers
72 views

Adding services to NagiosXI

I am trying to configure nagiosgraph-1.5.1 in NagiosXI installed on RHEL6.1. I have followed this guide and everything worked fine till some point. Under the subheading "Adding Service to ...
0
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1answer
189 views

Nagios, Is it possible to monitor file modification?

I'm trying to monitor file modification of /etc/passwd, is it possible to do that with Nagios? I'm not looking for file modification time, but for file changed or not... Do you know any way to do it ...
0
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1answer
2k views

NRPE: “CHECK_NRPE: Error receiving data from daemon.” error in the gui, but the check works from terminal, what could be the cause?

I'm monitoring a few Linux servers using NRPE and most of the checks are working. Actually, the only check which doesn't work is check_disk. Running a remote check_disk from the Nagios server ...
3
votes
1answer
150 views

Nagios check for wuauserv on Windows Server 2008+

From Windows Server 2008+, wuauserv is no longer a service that's ran all of the time and is instead ran as a scheduled task. I'm not sure of the exact behavior of how the scheduled task is created as ...
0
votes
1answer
324 views

Checking disk space for tmpfs Nagios

Here is the result of df on my target computer ~# df -h Filesystem Size Used Avail Use% Mounted on /dev/mapper/vgsys-lvroot 11G 5.4G 5.0G ...
0
votes
1answer
313 views

Why isn't nrpe 'check_procs' finding my Passenger process?

I'm trying to use check_procs from NRPE to find out whether Passenger is running on my server. It loads from httpd but appears separately. 32135 ? Sl 0:09 Passenger RackApp: ...
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vote
2answers
1k views

Nagios: turn off service checks/display on down hosts

I want to to tweak nagios in such a way that all checking stops (with services not displayed, or displayed as unknown) for any down node. Said differently I only want to see one alert for a down host ...
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0answers
832 views

It appears as though you do not have permission to view information for any of the hosts you requested

I am getting the above error whilw logged in as nagios admin user. I am copying the file objects.cache and status.dat from remote server to get the updated to this machine,I am logging in as ...
0
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1answer
71 views

Puppet: Nagios with regex node names

I am configuring a puppet master and want to rely heavily on hiera. Many of my systems will be almost identical due to being scalable. I have therefore created node manifests which use regex rather ...
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0answers
89 views

Monit send alert to nagios NSCA

I want to monitor a web with monit check host function and if the site is down then alert it to nagios nsca so it sends the info to nagios and nagios marks it as status OK or host down for example. ...
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2answers
775 views

How to use nagios to monitor Zookeeper nodes

Sorry this may be a basic question, but I am new to both nagios, and zookeeper. My company has an application that uses zookeeper to track job status, by creating/destroying nodes. I need to be able ...
2
votes
1answer
72 views

Recognizing Dell EquilLogic with Nagios

EDIT: All firmware and models are compatible, that is why nothing is posted about it. Okay, so there will be a lot here, so please bear with me. I've been working on this now for a few hours (reading ...
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0answers
69 views

NagiosXI- Configuration verification failed

I am using check_ping command to check connection statistics of remote host. When I run the above command on command line, it gives me proper output, shown below: Syntax: ...
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1answer
175 views

Nagios Alerts / Notifications - SMS

Configured Nagios core 4.0 and NDOutil 2.0 both are working in ubuntu. Now i am looking for alert types in Nagios. And i am confused in plug-ins and Add-ons in nagios. Especially i am looking in ...