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

learn more… | top users | synonyms

2
votes
3answers
7k views

How I can check for exact amount of space (MB or GB) in Nagios using check_nt command instead of percentage used value?

How I can check for exact amount of space left (MB or GB) in Nagios using check_nt command instead of percentage value? Currently I'm using this command: check_command check_nt!...
2
votes
3answers
6k views

How to make nagios send me brief and informative alerts?

The default format for alert messages is: ** RECOVERY Host Alert: server is UP ** ***** Nagios ***** Notification Type: RECOVERY Host: server State: UP Address: server.ru Info: PING OK - Packet loss ...
2
votes
2answers
353 views

Delaying a Nagios/Icinga check

When monitoring the healthy of a server, some faults or warnings are immediately urgent but others only matter if they persist. I'm thinking of things like: Some software needs to be updated Time ...
2
votes
4answers
2k views

Avoiding Nagios commands.cfg

I want to call a command directly from a Nagios service file, instead of passing arguments clumsily to commands.cfg. For example I want do this: define service { service_description ...
2
votes
3answers
588 views

Is there a way to install just a subset of NRPE checks?

I want to be able to check just a few things on a remote host from within nagios - cpu, memory etc, so, I am looking to install NRPE on the machine. NRPE wants to install Samba along with many other ...
2
votes
4answers
186 views

Tool to organize and arrange various monitoring pages? [closed]

we recently added a MacPro with eight (yes 8) monitors on it. We have various tools for monitoring our website (Chartbeat, Nagios, internal statistics, Jenkins, Smartfox, etc.) and they are currently ...
2
votes
3answers
6k views

How can I resolve “(Service check did not exit properly)” and “(null)” results with my services?

I'm using some Perl-based scripts for service checks in Nagios and I get (Service check did not exit properly) and (null) as the result in Nagios, but the script works great on the command line. I've ...
2
votes
1answer
320 views

NAGIOS: How to disable toner checking when the network printer is down?

I would like to monitor the toner level of a network printer using nagios3. I have everything I need to access the toner level using SNMP. But, when the printer is off, I have an error "Host is down"...
2
votes
2answers
9k views

Looking for toner level OID for nagios snmp for Brother 9460

I'm setting up an Opsview (nagios) server for monitoring. It's all going fairly swimmingly so far. The most immediate use for the system will be monitoring (or more to the point, alerting me about) ...
2
votes
2answers
854 views

Nagios to monitor hosts behind a host

I have a Nagios setup that is monitoring multiple Windows servers, workstations and Cisco switches on a network. We are planning to add a second network interface to one of these Windows 2008 servers,...
2
votes
1answer
533 views

Restarting a service with Nagios

OK, guys, sorry for my probably stupid questions but I'm very new at this. I was assigned to research how to use Nagios to monitor different services and if a service falls down, to attempt to restart ...
2
votes
1answer
286 views

How does Nagios keep sending alerts in low RAM situations?

Let's say I'm trying to monitor a box with Nagios, but there's a runaway process that's stealing nearly 100% of the computer's CPU and RAM. How does Nagios continue to alert me about the status of the ...
2
votes
3answers
249 views

Pulling Server Stats for Remote Monitoring

I'd like to write my own server monitoring app. Ideally it could show stats like load, uptime, cpu activity, most active processes, memory usage by process, etc. What's the best way to grab that ...
2
votes
4answers
6k views

Is there a possibility to monitor https sites in nagios over a proxy?

i have a little question about the nagios tool: Is there a possibility to monitor https sites in nagios over a proxy? Which means i want to monitor whether my proxy can reach some https ressources in ...
2
votes
2answers
2k views

How can I monitor with nagios an unmanaged switch?

can i somehow monitor the unmanaged switches? it's not really monitoring if you have to ignore 4 switches..
2
votes
2answers
3k views

Nagios check for service not if host is up

I'm looking for a little direction on this one. We have 8 mobile servers, and at anytime one can go offline and be moved to a different location. I don't want Nagios to send me an alert if a system ...
2
votes
1answer
5k views

Nagios - getting historical data and automated trending

I am using Nagios for an energy efficiency project and workload balancing is a crucial aspect of the project. I am interested in how I can retrieve historical data from Nagios (e.g. CPU load for the ...
2
votes
1answer
1k views

nagios: trouble using check_smtps command

I'm trying to use this command to check on port 587 for my postfix server. Using nmap -P0 mail.server.com I see this: Starting Nmap 5.51 ( http://nmap.org ) at 2013-11-04 05:01 PST Nmap scan report ...
2
votes
2answers
628 views

Nagios only create warning for a http service

I would like to also monitor non-crucial services with nagios like for example our GitLab-server or phpMyAdmin instance. Is there any way to just create warnings instead of critical errors for some ...
2
votes
1answer
196 views

How to make email alerts customizable?

I'm running Nagios 3. It is generating the alerts that are based on my conditions that I had mentioned. What I want now is to customize my email alerts with a detailed messages. I need to send alerts ...
2
votes
1answer
1k views

How do you Null an inherited service check in nagios?

We have a nagios setup that uses inheritance to a larger degree than I am used to. I’ve read the documentation at: http://nagios.sourceforge.net/docs/3_0/objectinheritance.html But I still can’t ...
2
votes
1answer
889 views

How can I change the path I access Nagios with in my browser?

I normally access nagios at mysite.com/nagios3/ but how do I change that? In the /etc/nagios3/apache2.conf file there are these (and other) variables: ScriptAlias /cgi-bin/nagios3 /usr/lib/cgi-bin/...
2
votes
3answers
2k views

First time Nagios

Trying to get nagios up and running and been stuck here awhile, not exactly sure what I am doing wrong.. Any help would be great =) /usr/local/nagios/bin/nagios -v /etc/nagios/nagios.cfg Checking ...
2
votes
2answers
315 views

Nagios RHEL 5.4

I'm moving Nagios 3 over from Ubuntu 8 server to RHEL 5.4. One nice feature Ubuntu had is the ability to tell you where the configuration errors are. For example if I had something incorrect in my ...
2
votes
3answers
1k views

Monitoring MySQL clusers with Nagios

I'm trying to figure out how to monitor MySQL clusters with Nagios. I have found the following information at http://blog.unixmaniacs.com/2008/12/mysql-cluster-ndbd-monitoring-with.html, however I ...
2
votes
4answers
3k views

Simple check to see if mysql is up with Nagios

Is there a simple check to see if MySQL is up on a host with Nagios without authenticating and selecting a table?
2
votes
2answers
49 views

About monitoring a server (and a HTTP status of 200)

This is probably a very silly question, but I'm new to this. I am currently learning about system administration, and was asked to set basic monitoring in place (that checks a website returns HTTP 200)...
2
votes
1answer
15k 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 ...
2
votes
2answers
444 views

nagios: alternatives to SMART disk checking?

I'm attempting to repurpose some older Dell PE 29xx machines. These have PERC RAID controllers so the SMART testing isn't working. Is there an SNMP alternative or do I need to start slogging through ...
2
votes
1answer
4k views

Where are Nagios Availability-Report files stored?

How to access Nagios Availability-Report files to retrieve "UP Time Percent" and so other information about Hosts and Services? I know It can be accessed through Nagios CGI but I want to use it on a ...
2
votes
1answer
2k views

PNP4Nagios creates infinite .perfdata files

at our company we have installed a Icinga together with PNP4Nagios. We've got a rare problem with the perfdata files PNP4Nagios creates. Each couple of weeks, we notice that our icinga server stops ...
2
votes
3answers
24k views

NSClient++ returns 'Connection Refused'

I have been unsuccessfully trying to get NSClient to work on my 64 bit Windows 7 machine with Windows Firewall turned off. I have tried with the service started and also tried running 'NSClient++ /...
2
votes
3answers
5k views

Nagios plug-in check_snmp receives NO SNMP data from a CISCO Router

I have tried setting up Nagios on Ubuntu 10.10, successfully installed and can login to web interface, I am however stuck on configuring snmp or I am doing something wrong here, i have followed ...
2
votes
1answer
333 views

Monitor a long running process

I need to start a long running, memory/disk/cpu intensive process on Linux, and monitor it so I can : check it terminates with a good status code, collect stats (mem cpu disk every x minutes ) alert ...
2
votes
4answers
695 views

Server monitoring [duplicate]

I need a server monitoring tool that does the following - Notifications when services or sites go down - SLA Reports - Inventory Managment - Centralized Logs - Monitor local and remote servers I ...
2
votes
2answers
1k views

How to use nagios to monitor a printer

I have network based printers, and I was wondering, as all network printers with SNMP able to give up information such as if they need ink, or toners or just their general status. I'm not the ...
2
votes
2answers
3k views

Nagios configuration that only notifies 1x down and then only notifies the recovery

Currently I have Nagios up and running and it notifies me by email of events. I would like to know the configuration change that I have to make, so that I will only be notified 1 time of a server ...
2
votes
2answers
4k views

Monitoring /proc/sys/fs/inode-nr

As part of a general overhaul of some Nagios scripts, I am adding parameters to the scripts so that the thresholds can be determined on a machine-by-machine basis. As an example, we are specifying ...
2
votes
1answer
2k views

Identifying cause of Nagios “number of processes” warning on Linux

I just started to get a Nagios warning from our build server, stating that the number of processes has exceeded the limit. Looking at our Munin graphs, I can see that the number of processes has ...
2
votes
1answer
1k views

Recommended JMX plugin for Nagios? [closed]

There are several Nagios JMX plugins out there, according to the Nagios plugin registry and Google. Any recommendations on one JMX nagios service check over the others? The few I glanced at briefly ...
2
votes
2answers
8k views

check_snmp warning & critical thresholds with negative values

I'm querying some signal level values measured in dBm, and the SNMP host on the remove device reports the values as negative values, ie, -90 dBm. However, check-snmp seems to be incapable of dealing ...
2
votes
2answers
5k views

Nagios Terminal Services check?

Most of our servers are licensed for 2 concurrent remote desktop sessions. This is fine, so long as everyone does their administrative task and logs off, but some people accidentally close sessions (...
2
votes
3answers
1k views

NRPE-like checks from windows-based machines

I am sorry for not being able to come up with a more descriptive question title. For getting remote metrics I use nrpe on linux-based machines and nsclient++ on windows-based machines. If I need to ...
2
votes
4answers
18k views

Snmp configuration giving me timeout, no response

This is definitely not a firewall issue as no firewalls are in between the src and tgt machines. I'm simply setting up snmp to be queried by a nagios server. My snmpd.conf looks like the following (I'...
2
votes
2answers
2k views

How Do I Get Started With Nagios?

I have been thinking about getting started with monitoring software for a while now, but never seem to get started with it well. I have heard Nagios is a pretty decent open-source solution for this, ...
2
votes
3answers
6k views

How to configure Nagios alerts for Exchange Mail Stores

Does anybody know how to configure Nagios to monitor MS Exchange mail stores? We have had mailstores unmount (because of diskspace, and other causes), and would like to monitor their state (mounted ...
2
votes
2answers
200 views

Nagios check_ssh returns usage information instead of status

I installed Nagios on a Ubuntu Desktop (Nagios server) and I want to monitor a Ubuntu server instance (monitored client). I can connect via SSH between both machines and SSH is not blocked. The nagios ...
2
votes
1answer
82 views

NRPE 2.15 - check_procs not showing right value

I've got Nagios Core Version 4.1.0rc2 configured server-side with a client running NRPE 2.15. I've got the two devices properly communicating using the check_nrpe command, but for whatever reason the ...
2
votes
2answers
42 views

Define service for all hosts that belong to all the given hostgroups

I can not figure out how to create a service for all hosts that are in 2 given hostgroups. Example hostgroups: oracle: hostA, hostB prod: hostB, hostC Now I need a service for all hosts that are ...
2
votes
2answers
754 views

Nagios Basic Configuration (for quick addition of new machines)

I recently started to use Nagios to monitor about 25 servers (mainly virtual, with some standalone). Them majority of the servers (including the Nagios host itself) are running Ubuntu 14.04 LTS, with ...