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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1answer
12 views

Monitor Dell hardware on ESXi 5.1 using check_esxi_hardware on Centreon

I installed Dell OpenManage on ESXi5.1 Host, which I'd like to monitor through Centreon. Since check_openmanage plugin is not to be used with ESXi (according to that post : DELL OpenManage 7.3 on ...
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0answers
11 views

How to exclude pattern in check_logfiles nagios

How to exclude any pattern from log file using check_logfiles script. I wanted to exclude [:error] this pattern.
1
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1answer
1k views

Updated OMD and Check_MK Agent returns Null

I updated OMD to the current version using the following: omd update <site> Everything appears to update fine, but now my servers with the check_mk agent installed show (null) and I do not ...
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3answers
7k views

How do I monitor CPU and Memory usage with Nagios?

Is there a plugin that does that? If yes, how do I set it up? I have Nagios on a single server setup (nagios monitoring the box where it's hosted), so I don't need any fancy way of getting that info ...
3
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2answers
3k 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 (/usr/share/...
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2answers
34 views

Nagios - external monitoring host without real connect - how do?

I've got a problem. I have a few external servers that need monitoring by Nagios, but they are in remote VPN networks. I must send monitoring data from vpn's host to Nagios who is working on public ...
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2answers
1k views

Nagios NRPE on Ubuntu 12.04 “Unable to read output”

Right to the point. NRPE.CFG Modifications: Added Nagios Host to Allowed: allowed_hosts=127.0.0.1,192.168.1.10 Removed # in front of command_prefix=/usr/bin/sudo After that i have reloaded the ...
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2answers
2k 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 - ...
0
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1answer
15 views

nagios snmp switch config

I installed Nagios 4.1.1 on Centos7. Already added my Windows 7 PC, and two Windows servers. Now I wan't to add some switches. My problem is that I have not "check_snmp" installed. Already added the ...
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5answers
5k views

nrpe: Host is not allowed to talk to us

I installed nrpe on new servers. Nagios is already running and checking other server (I haven't installed). I've got several error lines in my syslog file : Oct 31 15:17:01 myservername nrpe[41848]: ...
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1answer
9 views

“Error: Could not complete SSL handshake. 5” in syslog of otherwise fine Nagios monitored host

I have a nagios server on ubuntu that monitors many other ubuntu servers. They have configured with chef, and they are correctly monitoring things over NRPE (i.e. the NRPE checks work. When something ...
0
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1answer
20 views

Nagios still send notifications for services during scheduled downtime

Three of my servers have a down time from 21:50 friday to 5:30 saturday. So I configured the following time period in timeperiod.cfg : define timeperiod{ timeperiod_name ...
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2answers
5k 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
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0answers
33 views

SNMPTT exec not working

We're using SNMPTT in a Nagios environment. My MIB works for all events, but 1. I can't figure out what's going on. When a trap comes in, I want it to execute a file, which will then handle the ...
1
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2answers
8 views

Passing argument to nrpe

Remote hosts nrpe.conf command[check_users]=/usr/lib64/nagios/plugins/check_users -w $ARG1$ -c $ARG2$ Monitoring host: define command{ command_name check_nrpe command_line /usr/...
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2answers
852 views

Nagios is sending notifications for hosts with scheduled downtime

I've got the whole Nagios configured, it's working for a while now with many many hosts and everything is OK, except the one thing I've discovered. When I schedule a downtime for a host, it's sending ...
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0answers
11 views

CHECK_NRPE: Error - Could not complete SSL handshake. win2003server

win2003k with nsclinet++ (remote host) 0.4.4.19 and ubuntu 16 serv with nagios (monitoring host). my nsclient.ini [/settings/default] allowed hosts = 127.0.0.1,::1,10.50.133.98 password = 12345 port=...
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2answers
24 views

NRPE error when using check_nrpe

I have 2 centos server Server 1 - centos 6.8 Server 2 - centos 6.7 Originaly I had the issue on Server 1 but was able to fix the issue I had with the fix explained here NRPE unable to read output,...
0
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1answer
1k views

Nagios Configuration Error

Running /usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg Does not give any error. The output is Things look okay - No serious problems were detected during the pre-flight check ...
2
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1answer
34 views

Check_MK: How do I create Notifications based on groups of services instead of just one service?

I'd like to be able to create a notification that alerts based on the availability of a group of services, instead of just one threshold. For example, say I have 10 AWS servers that all do the same ...
0
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1answer
380 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
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3answers
8k views

How to debug Nagios “NRPE: Unable to read output” when checking NFS?

I have a working Nagios setup where I e.g. monitor disk usage through the NRPE daemon without parsing arguments through NRPE for security reasons. So I know that NRPE works. Now I would like to check ...
3
votes
6answers
8k 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 ...
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3answers
14k views

How to allow a user in Nagios to view the status of some servers, but not disable/enable anything?

How to allow a user in Nagios to view the status of some servers, but not disable/enable anything?
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0answers
34 views

check_cluster plugin always returns ok

trying to create a cluster check for a http service check on a large (~80 node) cluster. But no matter what the state of the individual service checks, it always returns OK (in this example, cm02 and ...
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0answers
12 views

check_cluster arguments aren't being parsed

trying to create a cluster check for a http service check on a large (~80 node) cluster. I'd like it to warn @ 40+ nodes in a non-ok state, crit @ 60+ nodes in a non-ok state. command definition is: ...
0
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1answer
29 views

Nagios3 saying localhost is down on ping, but no ping check is written

Nagios3 and Ubuntu 14 with ping requests disabled. The localhosts keeps reporting in the GUI nagios interface that it is down. This is the default "localhost_nagios2.cfg" found in the conf.d dir ...
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++ /...
0
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1answer
11 views

nagios/icinga flapping notifications not sent?

I've seen this on nagios and on my current icinga installation. I have flap detection turned on. I have my contact definition set to: service_notification_options w,u,c,r,f ...
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votes
1answer
296 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?
0
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1answer
70 views

Write to file (Nagios3)

I try to make script/command in nagios3 at write in new file some data but nagios will not do that. I try that simple bash command: printf "something" > /path-to-file/new-file But nagios don't ...
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0answers
17 views

Nagios configuration files issue

I am using nagios core 3.3.1 and have added some service groups and corresponding dependencies. While trying to verify if my configurations are correct, I run the following command: /usr/local/nagios/...
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2answers
45 views

Can configure Nagios to send notification based on a certain percentage of services down in a particular hostgroup?

Let's say we have a hostgroup of 100 hosts, all of which are being monitored for service X. Let's say this service goes down across all hosts. Rather than receiving 100 separate alerts, I'd like to ...
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0answers
26 views

Zabbix-like reporting to multiple servers with Nagios

A nice feature of more recent Zabbix versions is its ability to set up active Zabbix agents in such a way that the reports are being send to multiple Zabbix servers (Multiple servers for active agent? ...
1
vote
1answer
53 views

Should I install Nagios on the pfsense?

I'm planning to install Nagios, but I'm not sure if there is a package for pfsense, or can I install separated from pfsense but on the same machine? Anyone had experience with that? Second part of ...
5
votes
7answers
11k views

Nagios Woudn't Start, now won't Stop!

I ran an update on a CentOS server running Nagios, after the update, Nagios failed to start. The error in the logs was: Failed to obtain lock on file /var/run/nagios.pid: Permission denied So, I ...
0
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1answer
29 views

check_nrpe: ssocket time out after 10 seconds

I have a Nagios core setup in my environment for monitoring Windows, Linux servers etc. Recently i have configured a physical and swap memory monitoring using the plugin ./check_nrpe for windows ...
0
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1answer
27 views

Adding nagios plugins to nconf schema

I've got nagios and nconf installed and I'm starting to add host and service definitions. What I notice though is a large discrepancy between the list of available nagios modules which can be used to ...
8
votes
4answers
25k views

Monitor ssh on non-default port with Nagios

I just deployed Nagios on a Gentoo server and everything is fine except ssh, which it marks as "CRITICAL" because it's refusing connections. But that's because it's running on a port different from ...
0
votes
1answer
20 views

Icinga monitoring, random “Connection refused by host”

I have a Nagios/icinga monitoring system, which i use to monitor mainly Windows based machines running a version of NSClient++ that i found works without being too annoying (NSCP-0.4.1.105-x64). This ...
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 ...
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2answers
64 views

Monitoring IBM server hardware without IMM port connection

We have a lot of IBM x86 servers that we need to monitor for hardware issues(disk failure/temperature/fans). Around 50% of them have IMM ports hooked up and we are able to monitor for SNMP traps using ...
1
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0answers
133 views

Nagios core 4.1.1 error: Unable to get process status

When start to connect through http://localhost/nagios, i could get "Daemon running with PID 2027 ". but connect through http://own_ip/nagios, i couldn't get "Daemon running status" instead its showing ...
0
votes
1answer
70 views

Script executed by Nagios notification not send mail

i've running a new nagios (server 3.5.1) system. all checks works fine [1461932408] SERVICE NOTIFICATION: nagiosadmin;appserver;Swapfile;CRITICAL;notify-service-by-email;CHECK_NRPE: Socket timeout ...
5
votes
2answers
1k views

Nagios alert based on scheduled MySQL queries results

I have installed Nagios 4.0 on my Ubuntu 14.0 and i want a plugin to alert me based on daily scheduled MySql queries .. if the result of ( select count(*) from tableName > 10 ) raise a critical ...
0
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1answer
27 views

New nagios install segfaults on startup

I'm having some nagios trouble which I hoped to solve by a clean install, but no dice. I retrieved https://assets.nagios.com/downloads/nagioscore/releases/nagios-4.1.1.tar.gz, and did as little as ...
2
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1answer
29 views

Nagios place child service under parent

I'm looking for a way to structure services been monitored so that I can set a parent service above the child services and that only notifications are triggered if the parent experiences an outage ...
0
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0answers
28 views

PNP4Nagios mouseover options

I have successfully installed PNP4Nagios for graphing nagios performance data. However, I can't get the mouse over feature working under Nagios frames to display value on corresponding graph. Please ...
0
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0answers
21 views

nagios custom script working locally, returns null in UI

I have a custom script that I've defined within my nagios command.cfg and service definitions. When run locally as nagios on the monitoring host, it returns the expected output (a large hash of stats ...
1
vote
2answers
777 views

Spoofing origin host using snmptrap

I'm about ready to lose my mind with this... I need to spoof the host that snmp traps are being sent from using the snmptrap command. The man pages for snmptrap state that you can utilize common ...