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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2answers
591 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 (...
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0answers
413 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 ...
3
votes
2answers
9k 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 ...
0
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1answer
275 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 doesn'...
0
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1answer
2k 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?
2
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2answers
2k 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 ...
0
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1answer
3k 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 ...
2
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2answers
320 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 ...
1
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2answers
327 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 /usr/local/...
1
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1answer
54 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 ...
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0answers
46 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 ...
3
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5answers
1k 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 ...
1
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1answer
49 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
1k 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
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1answer
186 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 don'...
1
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1answer
466 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 ...
1
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0answers
38 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 ...
3
votes
2answers
432 views

Nagios: How to allow a non-admin user the correct permissions to be able to acknowledge alerts?

Sometimes there are alerts which are not so urgent and can wait for the next morning until they are taken cared of. During these times, the NOC team keeps getting alerts regarding the problematic ...
1
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1answer
56 views

Include check_command with nagios/icinga alerts

Is there a way to include the check_command that is being used when being alerted via Nagios or Icinga. Example: define command { command_name check-x-dc6.x-icmp command_line $...
-3
votes
1answer
88 views

Configuring Nagios

We're using Nagios based Op5 to monitor hosts. I've minimum requirement to check a host if it is live or not. So I simply want to know if a host is live with max RTA of 10 seconds. I don't care how ...
2
votes
1answer
453 views

NRPE: Custom script returns unable to read input, but the script works correctly, what could it be?

I wrote a Nagios check script which receives a path as argument and checks: if the path is mounted if it is accessible by touching a file in the path. If the mount point directory is empty ...
1
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2answers
780 views

What data does nagiosgraph need from my plugin?

I've been searching high and low for a good explanation of how I should return data from my custom Nagios plugin to make sure that Nagiosgraph will be able to parse it. One place suggests the format ...
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2answers
306 views

Nagios plugin executes manually but not automatically

After some trial and error I managed to get the check_hwinfo plugin only partially working. And by partially I mean manually. In my '/usr/lib64/nagios/plugins' directory I have the 'check_nrpe_hwinfo....
0
votes
1answer
887 views

Monitoring PostgreSQL replication with Nagios and check_postgres shows intermittent delay

I have a master and hot standby setup with PostgreSQL 9.3, and I'm attempting to monitor the state of replication on the standby using the check_postgres tool and the "hot_standby_delay" action. This ...
8
votes
2answers
5k views

How might I cancel scheduled downtime on Nagios

I have a Nagios 3.5.1 monitor up for a bunch of servers. In doing an action like a Drupal or Wordpress core upgrade, I down the sites and set Nagios to scheduled outage. Sometimes I finish in under ...
0
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3answers
843 views

NRPE commands doesn't work when called from remote management host

First of all: I know there were already questions about this issue, but even using their answers I still cannot figure out why my command is not working. What I want to do is call a script on remote ...
2
votes
1answer
1k views

Nagios check_procs state filter

I'm on Ubuntu 14.04 and trying to run /usr/lib/nagios/plugins/check_procs -C rsyslogd -w 1:3 -c 1:5 -s S and it returns PROCS CRITICAL: 0 processes with command name 'rsyslogd', STATE = S | ...
0
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1answer
212 views

Can OpsView or Nagios be set up to report on a device based on status emails it sends out?

I'm looking at setting up a Nagios (or perhaps OpsView) server for monitoring our network. I have a few periphery devices whose oid schema doesn't include nodes for some metric I want to monitor. ...
0
votes
1answer
363 views

Nagiosgraph mouseover fails

I have setup Nagios 4 together with Nagiosgraph and they are both working perfect. However the javascript Mouseover effect does not work. I have copied the following line in ../nagios/share/ssi/...
2
votes
2answers
1k views

What is the difference between host_check_live command and Ping service

We are using Nagios based Op5 to monitors servers. Do we need to have Ping service too for servers as I guess host_check_live (command: $USER2$/check_host -H $HOSTADDRESS$) command already uses Ping ...
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0answers
165 views

Is it overkill to use Ganglia and Nagios for one server? [closed]

In my home I run a Plex/Data server. It basically just serves everyone's files and then Plex to play movies and such. A Teamspeak server also runs on it, but nothing major other than those tasks. I ...
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votes
1answer
45 views

How to keep nagios notifying me when the services or hosts are unnormal? [closed]

I got notification when my services or hosts were not normal, but just once. So I want to keep getting notified when the services or hosts in unnormal state, for example one time 1 minute. Can I ...
4
votes
1answer
605 views

Nagios: How to aggregate a large amount of notifications into one email notifcation?

I have a Nagios server which monitors many servers. There's a dashboard which has been coded in-house and it sends monitoring data using passive checks to the Nagios server. Whenever an issue occurs, ...
0
votes
1answer
2k views

Setting up PNP4nagios - Cant find Nagios Environment

My system is configured as follows: Ubuntu 14.04LTS Nagios Core 4.0.8 Plugins @ ver 2.0.3 PNP 0.4.13 The latest apache, perl, rrdtool, etc. Nagios has been working normally, just added a remote ...
1
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2answers
4k views

Installing Nagios 4.0.2 on Centos 7 - service fails to start

Having followed the instructions here http://linoxide.com/how-tos/install-configure-nagios-centos-7/ (but downloading Nagios 4.0.2 instead of 4.0.7 - I have to use that version), I have reached a ...
1
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0answers
374 views

“no data was received from host” Nagios Alarm only on Windows service checks

I've got a standard Nagios install monitoring 524 hosts and 912 service checks. I'm seeing a strange problem as far as it relates to monitoring if a service is running on windows server. It seems ...
0
votes
1answer
985 views

Howto monitor web server nodes through HA proxy using Icinga/Nagios in CentOS 6

In this guide I'm not focusing at all on setting up HA proxy or why you'd want to do that. If you have it and want to properly monitor it using Icinga, here's an idea of how you could go about this. ...
0
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1answer
143 views

Remote http restart when nagios detect issue in http

I am looking for a plugin, if nagios detected som eproblem on remote http then it will restart http to remote system. Is this plugin is available ?
2
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1answer
7k views

Nagios - NSClient++ cannot run included external script

I am running Nagios 3.5 on a Centos 7 machine. The setup is used to monitor some Windows machines via NRPE (check_nrpe commands). For the time being I am using the preconfigured 'alias' commands that ...
2
votes
2answers
2k views

How to check the content of an URI containing a Hash using Nagios' check_http?

Attempt check_http -H www.example.com -f follow -p 8080 -u /hello/#/world -s "content" Result HTTP WARNING: HTTP/1.1 404 Not Found - X bytes in 0.00X second response time |time=0.00XYZ Analysis ...
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votes
2answers
44 views

How to pass your own -H flag to a nagios plugin?

Looking here on the nagios docs I see that it's standard practice to pass a hostaddress macro to your commands with the -H flag. What if your command already has a -H flag however? It's not clear to ...
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votes
1answer
5k views

Passing arguments to nagios plugin

I've installed my first plugin on a Nagios server, but am having trouble getting the arguments right. I've tried some things with $ARG1$ but am essentially just flopping around. One complication, ...
4
votes
1answer
467 views

Nagios plugin check_hwinfo not working

I am using Nagios to monitor Windows hosts. I am using Nagios 3.5 running on a Centos 7 server. The following packages have been installed from the official repositories and from the EPEL repository: ...
1
vote
2answers
1k views

Nagios Configuration error: “Unexpected token or statement in file” during Pre-flight check

I'm using Nagios 3.2.3 on CentOS 6.5. Everything during install and make went smoothly. I transferred over my conf files, made the appropriate changes, and did a pre-flight test against my nagios.cfg ...
2
votes
1answer
462 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 ...
0
votes
1answer
299 views

Monitor Linux services with Nagios 4 [closed]

I'm trying to monitor a few RHEL7 services via Nagios. I'd like to monitor if the services are running or stopped and receive an alert when stopped. I haven't any out of the box option with Nagios 4 ...
1
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1answer
2k views

Apache and LDAP Authentication

We are using Apache mod_authnz_ldap to authenticate users to Nagios using our LDAP Active Directory. Right now it is working with using SamAccountName. However, Nagios is using the SamAccountName as ...
1
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2answers
1k views

omd nagios monitoring servicestate mssql / Failed to open service

I'm trying to monitor mssql service in OMD nagios, but with no success so far. Communication port: 1433 instance name is like: MSSQL$instance Here's my check: check_command check_nt!SERVICESTATE!-l ...
0
votes
1answer
594 views

Nagios: how to monitor supermicro based systems

I have several older supermicro based NAS devices. Happened to be at our hosting facility today and saw that one had a disk failure. I thought that I was monitoring this via SNMP->Nagios but clearly I'...
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votes
1answer
293 views

NRPE: Unable to read output locally

I am running /usr/lib64/nagios/plugins/check_nrpe -H 127.0.0.1 -c check_disk as root yet get NRPE: Unable to read output. Any help?