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

1
vote
1answer
24 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 ...
0
votes
2answers
3k views

pnp4nagios does not generate perfdata

I am running nagios2, pnp4nagios-0.6.16 and php 5.2.4-2ubuntu5.19. In my setup, pnp4nagios is correctly generating perfdata, which can be seen via the web interface in graphical form for lots of ...
1
vote
1answer
836 views

Problems in monitoring file age with nagios (command substitution in filename)

In my current nagios installation I check for the existence of a remote backup through NRPE. In particular, my remote nrpe.cfg (on a Ubuntu 8.x) is: ...
0
votes
2answers
3k views

check_ssh executed from Nagios server returns “Server answer: ”, nothing else

Commmand works on the host I need to monitor (its IP is denoted as $HOSTADDRESS$ here): [root@host ~]# /usr/local/nagios/libexec/check_ssh localhost SSH OK - OpenSSH_4.3 (protocol 2.0) However, on ...
-4
votes
0answers
20 views

can any one of you please let me know how to configure in nagios to recieve sms and email notification only for production servers [on hold]

can any one of you please let me know how to configure in nagios to recieve sms and email notification only for production servers. And for non-production servers only email notification is enough.
2
votes
3answers
15k views

Free Nagios virtual machine

Where can a I get a quality, free VM of Nagios? http://www.nagios-on-cd.org/ seems to be dead, and the VMware appliance directory only lists JumpBox (good quality, but paid) and several other very ...
1
vote
0answers
135 views

NRPE (Winrpe) Powershell Command - Unable to read output in Nagios

I'm trying to run an Powershell script from NRPE.cfg and get the output in Nagios. When i run the script on the local (Windows) server, everything is just fine. But when i put it in the NRPE.cfg en ...
-3
votes
0answers
14 views

customize in nagios sms notification [on hold]

we have test/production/acceptance servers in total 100servers and on all 100 servers NRPE is running and monitored in Nagios. I have recieved a request wherein only production servers sms ...
1
vote
0answers
31 views

Nagios check_http gives 'HTTP/1.0 503 Service Unavailable' for HAProxy'd site

I asked this on stackoverflow, but I think it's better suited for here. Can't figure this one out! OS: CentOS 6.6 (Up-To-Date) I get the following 503 error when using my nagios check_http check ...
6
votes
6answers
11k views

Defining the email address which Nagios sends emails from

Hi currently Nagios sends notifications from nagios@server.domain.com, How do I go about configuring this? Thanks
0
votes
0answers
51 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 ...
2
votes
1answer
1k views

Nagios: Service dependency on same host for an entire hostgroup

I have a Nagios system with a large number of hosts categorised in different hostgroups. Each of these hosts has two services monitored on it, one of which is intended to be dependent on the other - ...
2
votes
1answer
88 views

HP MSA 2312 XML API “Unauthorized access requested”

I'm trying to write a custom Nagios Plugin to monitor a HP MSA2312fc via the HTTP XML API. I can successfully log into the system via /api/login/{login_hash} but always get the error "Unauthorized ...
0
votes
0answers
49 views

Nagios - Could not complete SSL handshake

I'm trying to configure Nagios command for checking status of physical memory on a remote Windows host using NRPE plugin. I'm using Nagios v3.0.6 on Ubuntu Server v14.10, and latest stable version of ...
1
vote
1answer
22 views

Nagios: dynamic check_load based on number of cpu/cores/threads, is there something like this?

I'd like to make order in our Nagios, in the check_load service. There is no hardware baseline in my company and each server has it's own different specs, which means that the check_load script ...
3
votes
5answers
6k views

Nagios simple dashboard [closed]

I am looking for a dead simple dashboard for Nagios so our IT team can view the status of our services. In an old version of what's up gold, it was a nice dashboard with different rectangular shape ...
0
votes
4answers
606 views

Does Nagios offer a “event logging” dashboard, if not, what should I use to monitor events?

I am using Nagios to monitor that a certain number of servers and processes stay online. This works well and I'm happy with it. However, I would like a consolidated "event log" across the servers ...
1
vote
0answers
27 views

timeout errors from nagios / SNMP

Am monitoring ~100 remote hosts via a VPN using check_snmp_process.pl. For many months this has worked just fine. Over the weekend I started seeing ERROR: Alarm signal (Nagios time-out) errors from ...
1
vote
2answers
90 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 ...
1
vote
2answers
667 views

Is there a way to exclude specific hosts from a Nagios hostgroup?

I have a Nagios server which includes many hostgroups. One of these hostgroups include a server which I'd like to exclude from being checked for one specific Nagios Check but I want it to keep being a ...
0
votes
0answers
27 views

how to monitor lxc services in production server

I want to monitor services running in lxc such as nginx, node, database, ect.. I have installed lxc in our production server to have service run in separate containers like database run in one lxc ...
0
votes
1answer
75 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 ...
2
votes
5answers
191 views

Windows Pagefile monitoring with Nagios

I have a NAGIOS check that monitors virtual memory on a windows machine, this check returns all the virtual memory used (physical+ max size of the pagefile). This is not what I want, I have tried to ...
0
votes
1answer
37 views

Reset Nagios LogServer admin password [closed]

I've lost my admin password to Nagios Log Server console. How can I recovery or reset admin password?
0
votes
1answer
1k views

FreeNAS/FreeBSD: How to access status of ZFS volume from jail?

I am trying to set up NRPE to enable remote Nagios monitoring of a new FreeNAS 0.91 system. I mostly have this working. I can connect and inquire about basic information like number of processes, ...
1
vote
4answers
4k 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 ...
0
votes
1answer
97 views

nsclient - debugging connection issues

I have numerous windows clients that I want to monitor via nagios/nsclient. I've installed the latest nsclient on two win7 x64 and one win2012 r2. Of these one win7 works while the other two machines ...
0
votes
2answers
52 views

Nagios Event Handler/Command not executing

I'm trying to configure my Nagios setup to automatically log a ticket in our ticketing system when a host goes down (PING service goes into a HARD CRITICAL state). I've got a script that will create ...
1
vote
1answer
8k views

What does runuser: cannot set groups mean

I am installing nagios3 on centos. After stopping the nagios server and then restarting I get the message Starting nagios runuser: cannot set groups:Operation not permitted. what does this mean ...
3
votes
1answer
13k views

How do I add a host in icinga-web?

how do I add a host in icinga-web? Do I need to modify access.xml and rebuild the cache? Or can I have a configuration similar to icinga/nagios? Kind Regards Dieter
2
votes
3answers
3k views

Nagios NRPE: Command “my_command” not defined

I have installed Nagios® Core™ 3.5.1 and NRPE v2.14 on my client which running RHEL 6.3 I have this error message on my Nagios NRPE: Command 'check_mysql_connections' not defined On my nrpe.cfg I ...
2
votes
1answer
2k views

PHP Error / Mk-livestatus in Nagvis

I have Nagios and Nagvis installed via Debian packages, but when I run Nagvis and try to get into the "General Configuration" menu I get this error Error: (0) Array to string conversion ...
0
votes
1answer
2k views

NSClient++ FAIL on Windows 2008 R2 — PDHCollector.cpp(215) Failed to query performance counters

I am attempting to monitor windows server 2008 r2 x64 Enterprise with Nagios. When I test/install the nsclientI get the following error: PDHCollector.cpp(215) Failed to query performance counters: ...
2
votes
1answer
43 views

Nagios alert “ESX3 Critical - Error: Cannot complete login due to an incorrect user name or password” after changing root password via vSphere

I currently just inherited Nagios administration after an employee was let go a couple of days ago. As part of our procedures for exiting employees, we changed passwords for all accounts the employee ...
5
votes
3answers
2k views

Nagios (Return code of 141 is out of bounds) on random services

We have had Nagios running on one of our servers with out any problems for a while but lately we get (Return code of 141 is out of bounds). The load on the server raised because we gone online with ...
1
vote
2answers
78 views

Command file 'nagios.cmd#015' does not exist issue if passivecheck is sent to NSCA daemon

Introduction As /usr/local/nagios/etc/nsca.cfg is replaced by the default config if opsview has been restarted the reference to this file that resides in /etc/init.d/opsview was changed to ...
0
votes
0answers
13 views

Nagios authentication when calling CGIs?

I'm trying to use the new JSON CGI that comes with Nagios 4.0.x as part of a website. The CGI returns JSON strings when executing for example this URL: ...
28
votes
4answers
18k views

Munin vs Nagios

We're currently using Nagios to monitor about 20 Linux machines (services and functional links). I just find out about Munin and I wonder if this is a Nagios replacement, or it can be used together ...
1
vote
2answers
2k views

The best nagios plugin for SMART? [closed]

I've tried the best plugin for nagios to SMART monitoring. There are some, but only monitoring temperature. But with smartctl we can find more data. Do you have some better plugins with all data from ...
1
vote
1answer
69 views

Nagios escalations not triggering

I'm currently reworking our Nagios configuration to use templates. I defined some host- and services templates like this: define service { name ...
12
votes
9answers
29k views

NRPE unable to read output, but why?

I have this problem with NRPE, all the stuff I've found so far on the net seems to point me at things I've already tried. # /usr/local/nagios/plugins/check_nrpe -H nrpeclient gives NRPE v2.12 as ...
0
votes
3answers
5k views

How to monitor memory usage of linux server using nagios

Just installed nagios on a central machine and nrpe on 10 remote linux machines and just started monitoring them. It works great. I can get cpu load, current users, processes, mysql, etc. I can't ...
0
votes
1answer
20 views

AND / OR service dependencies in Icinga / Nagios

I've been setting up an Icinga instance using service dependencies as so: define servicedependency{ dependent_host_name ahost dependent_service_description ...
0
votes
0answers
37 views

Nagios plugin quits when encountering the bc command— how to diagnose?

I've written a nagios plugin using the bash scripting language. When I run this script by hand it works with no issue. Putting it into a nagios plugin however, using the same parameters, leads to ...
1
vote
1answer
26 views

Starting lighttpd from nagios renders lighttpd broken

I'm using Debian 7.8 (wheezy), and lighttpd 1.4.31 with nagios 3.4.1. when I start lighttpd normally (as root), everything works as expected: /etc/init.d/lighttpd start However, when nagios starts ...
2
votes
1answer
76 views

Monitoring HP Smartarray (cciss) with nagios

I'm trying to monitor an HP Smart Array controller using nagios. I have 4 disks on 2 RAID1 arrays, so 2 disks per RAID1. I installed nrpe-server and nrpe-plugins and I'm using the almighty check_raid ...
1
vote
1answer
2k views

Nagios - check_ntp_time - Offset Unknown

I have a local NTP server running on the subnet to keep other subnet nodes in sync, without every node syncing with upstream servers. But, while implementing the check_ntp_time plugin for Nagios I am ...
0
votes
1answer
23 views

Nagios sending notifications even when it shouldn't

I have a bunch of non-server gear for which I would like to track downtimes, and therefore I have integrated them in my Nagios collection (so that I can generate availability reports). However, I ...
2
votes
2answers
4k 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 ...
1
vote
0answers
28 views

Script to verify/monitior HTTP caching headers [closed]

We'd like to verify that all our websites use the correct HTTP caching headers. Is there a script out there to make a request to a website, check its response headers and report whether it will be ...