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
3answers
21 views

Permission denied when running nagios plugin

I just wrote a simple bash script that check if filesystem is working writing and deleting a file, but when I put it into Nagios, it never runs as expected. root@debian:~# cat ...
1
vote
0answers
24 views

Nagios check_jstat

I'm trying to monitor java memory usage using nagios nrpe features. So I download and install check_jstat and install the plugin on the remote server. And when I ran it below is the result: OK: jstat ...
1
vote
0answers
6 views

nagios.service start operation timed out. Terminating

I have a Centos 7 Box on which I have installed Nagios and then migrate all the config files from an old Centos box. Everything looks fine, nagios -v doesn't return any error. However, systemd is ...
0
votes
0answers
12 views

Can we write an custom check for monitoring a process with Data Dog

I want to write an DataDog Check to monitor some process like Puma, delayed_job etc, I can see there are ready plugins available for these for nagios and Sensu but not for DataDog, But can I write my ...
0
votes
1answer
22 views

Nagios nrpe custom plugin command not defined on localhost

I have written a custom nagios plugin which is returning a command not defined error. I have not yet placed the command in nrpe.cfg or defined the service, etc as this is controlled by puppet and any ...
0
votes
0answers
11 views

Nagios check_log reset to OK after notification

Fail2ban is installed on one of the servers, I'm able to ban every IP that try to log in. I'm using the check_log plugin of Nagios to capture the last line of the fail2ban.log, it compares to the ...
-2
votes
0answers
12 views

How to monitor external hard disk with nagios core 4.x [closed]

All I have to setup nagios in centos. But I don't know how to monitor External Hard Disk. May you show me how to define it? Thanks you for your kindly support.
0
votes
1answer
37 views

Disadvantages of current condition monitoring and failure prediction system [closed]

I have a question, which good solutions (software/hardware) have been developed and applied in enterprise for online failure prediction? Zabbix, Openstb, Cacti and similar alternatives ? Can you list ...
-2
votes
1answer
39 views

Nagios alert by email for WARNING [closed]

I want to set Nagios up to issue warnings (e.g. mildly high disk usage of clients) via email. I'm new to nagios core, so please assist me to achieve this. what changes I have to make in config files ...
0
votes
1answer
39 views

NSClient++ :: Failed to establish secure connection

Trying to get active checks of a Windows host from my nagios server. At this point I'm not even using nagios, and just running check_nt from the command line. Verified that the port is open, it ...
-2
votes
1answer
31 views

Monitor servers in ESXi environment

I have my own environment on a ESXi host, so without access to the vCenter env. So I'm unable to setup nagios monitoring at first. In my environment I have different kind of servers: * Linux (Custom ...
2
votes
1answer
31 views

Nagios: exclude single contact from notifications

There is a number of services that notify a contact_group on state changes. Is it possible to exclude a single contact that belongs to this group from getting notifications? Prepending contact name ...
2
votes
1answer
26 views

Nagios plugin to monitor FreeSWITCH

I am trying to configure Nagios to monitor FreeSWITCH as mentioned at https://github.com/kjhosein/nagios-freeswitch-plugin . I have downloaded the script from git and followed listed steps. On ...
0
votes
1answer
24 views

Nagios doesn't send notifications in specific time

I have a problem with Nagios. Here's my service definition: define service{ use generic-service host_name Server1 service_description ...
1
vote
1answer
22 views

Centreon/Nagios check_http: Use different domain name/url

I configured Centreon CES as monitoring-system - now I'm facing the following problem: There is a host with domain example.com which resolves to 123.123.123.123. This host is not configured by me and ...
0
votes
1answer
141 views

Notifications from Nagios4 to Telegram

Can't get alerts from my nagios. Server on Debian. Installed telegram-cli from github.com/vysheng/tg Configuration files of Nagios4. commands.cfg: #'notify-service-by-tg' command definition define ...
1
vote
2answers
40 views

Passing argument in a .py script for nrpe plugin

Machine A = nagios master, Machine B = edge machine. In machine A's host.cfg I have: define command { command_name check_tok command_line $USER1$/check_nrpe -H $HOSTADDRESS$ ...
4
votes
2answers
47 views

Missing Feature in check_tcp Nagios Plugin

I've got a problem with the check_tcp plugin from Nagios and could not find any plugin that works like I need. I'm sending a string to a port via check_tcp and get a number back, in this case 2580. ...
3
votes
1answer
28 views

Nagios erratic behavior when sending notification emails

I am having a really tough time setting up nagios3 to do what I want. Far too many config files and not sure where exactly the problem is as everything seems correct. First, notifications were sent ...
2
votes
1answer
54 views

Creating Multiple Views in Nagios 4 Status Map

I have nagios set up to monitor our infrastructure across many different sites. As our business grows it is becoming a bit unwieldy. I have not discovered a way to set one node as the root and have ...
1
vote
2answers
28 views

Nagios Contact configuration

I am trying to create a contacts.cfg in Nagios so that it will contact two different email at different events. One is our regular email and one is our gmail which is configured to call us on an event ...
2
votes
0answers
61 views

Nagios, nginx and external commands - not authorized

So we're going from Nagios 3 to Nagios 4, and as we've been a bit behind on our hosts, we wanted to do a fresh start. The setup I went for was: Debian Jessie Nagios 4.1.1 Lilac for configuration ...
2
votes
1answer
46 views

How do I silence load alerts?

Within the large set of files that comprise our Nagios server, is service check for load: define service{ use generic-service name ...
2
votes
1answer
91 views

CentOS7: KVM: error: Cannot create user runtime directory '/run/user/0/libvirt': Permission denied

Been trying to resolve an issue I found by having our Nagios installation use a plugin for KVM, check_kvm, I found. I think my problem boils down to a permissions issue with the nagios/nrpe user. ...
0
votes
1answer
25 views

Nagios & Nc_net -> S.M.A.R.T

I need some help: We have a Nagios running which is monitoring some Windows 2012 R2 Servers. I want to add Disk Health/SMART-Monitoring to these machines. The Nagios config for a service on a Windows ...
0
votes
1answer
25 views

What is the difference between a Nagios plugin and a Nagios local check?

I see both terms used, local check and plugin, and to me it seems that they both accomplish the same thing, they extend Nagios to perform other checks. Is there any difference between them? If I want ...
2
votes
2answers
33 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 ...
1
vote
1answer
27 views

Generating basic Nagios configuration with Puppet in the wrong side

I have a little problem when I try to integrate Puppet with Nagios. This is my configuration (I know, it's so simple but it's my first try) /etc/puppet/modules/nagios/manifests/init.pp class ...
0
votes
1answer
26 views

How to dedicate hostgroup to user in Nagios

I'm trying to set up new user who just watch a hostgroup: I made that user like this: define contact{ contact_name somedude alias somedude ...
1
vote
2answers
28 views

Nagios configuration syntax: Multiple directives per line?

A large volatile part of my Nagios 3 (Icinga 1, actually) config looks like this: ... define host{ host_name bla0037 use template-bla } define host{ host_name bla0042 use ...
0
votes
1answer
71 views

Nagios is showing services are down but they are running on the host

I have just installed nagios in a centos 7 environment. It is working fairly well, but I am having a small issue. All my systems are showing as online, but some of the services on those systems are ...
0
votes
1answer
22 views

Output additional information if nagios/icinga check fails

We use check_postgres to monitor our PostgreSQL servers. Sometimes there are peaks in the number of locks and the check alerts. Up to now the check only tells us the number of locks. This does not ...
-3
votes
1answer
52 views

High Load average [closed]

I'm working as a new sysadmin. Monitoring system is working well but since few days ago Nagios Monitoring system warns me that there is a Problem. State is critical , load average is high. This is ...
1
vote
1answer
97 views

Linux server periodically can't connect to itself (but all other connections work)

I upgraded our server from Ubuntu 15.04 to Ubuntu 15.10 today. The upgrade went smoothly, and everything worked as expected after the reboot. However, about 20 minutes after booting the server is ...
0
votes
1answer
17 views

How to delete ec2 instances from Nagios configuration automatically

I am able to add ec2 instances in nagios using puppet but how can I delete the instances from nagios configuration after instances get terminated. I am looking for something, whenever any node gets ...
1
vote
0answers
37 views

How to manage third-party Nagios/Icinga plugins?

What is the recommended way to manage installed Nagios (or Icinga) plugins? At the moment all plugins on my system are installed from Debian/Ubuntu packages, so this takes care of updates, file ...
1
vote
1answer
51 views

Nagios bash plugin works correctly locally but not remotely

I wrote a bash script for a custom nagios plugin that passes two command arguments for the warning and critical thresholds. When I run the bash script locally while passing the two arguments it works ...
2
votes
1answer
148 views

Nagios Notification interval and first notification delay

I have used in past these two parameters in Nagios ( first_notification_delay, notification_interval ) and until now worked perfect for me. Now that I have added new checks which use nrpe command. the ...
0
votes
0answers
11 views

is hyperic dead, and an equivalent for windows custom performance counters would be? [duplicate]

For some years, we used hyperic. Other app monitor tools took over, so we left hyperic as new servers were spun up. We now need to track several windows perf counters, related to IIS, and a couple of ...
0
votes
3answers
20 views

Nagios: check if folder size increases by at least 1kb

Is there a way to check the size of a folder increases by at least 1kb every hour? I can't seem to find any plug-ins that do this out of the box. My Nagios experience is very little I'm afraid so ...
1
vote
1answer
35 views

Is it possible to setup Monit to send alerts to Nagios

I am trying to setup Monit on an auto-scaled group of machines. Ideally I would like monit to send alerts to my nagios service (which is already configured to escalate alerts). I have found this old ...
0
votes
1answer
49 views

Nagios set the host state to CRITICAL only after 2 check

I have a nagios server, that is a backup server as well. This server receives auto backup files from over 30 network devices in my network. The network gears send backup files hourly, but not at the ...
0
votes
1answer
25 views

Issue with sending email notifications using sSMTP and nagios(closed)

I have been fighting with this virtual server for a week to get it to send emails from nagios using sSMTP. I finally today got it to be able to send emails from the telnet, and through the nagios ...
3
votes
1answer
83 views

NRPE allowed_hosts name resolution with IPv6

A fully IPv6 dual stack enabled network is monitored by Nagios 3.5.1 installed from EPEL on a CentOS 6.7 server. Monitored hosts run NRPE agents, all of which are configured to run as daemons (not via ...
1
vote
1answer
49 views

Nagios not sending emails when a service recovers?

I have set up Nagios with chef. It's accurately monitoring things. When a service/host has a problem, I get an email and jabber message, which is exactly how I have configured it. However when the ...
2
votes
2answers
56 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 ...
1
vote
1answer
86 views

NRPE Works From Command Line; “Incorrect command line arguments” from Nagios

I'm trying to setup NRPE with a basic example as a first step towards deploying it. For simplicity, I'm running both NRPE and Nagios locally. NRPE and Nagios both seem to be working, but using ...
1
vote
1answer
79 views

NSCA passive stale --> multiple hanging nrpe processes?

shinken 2.0.3 nrpe 2.15 We are using nsca to perform passive checks. define service { name salt-service register 0 active_checks_enabled 0 passive_checks_enabled 1 ...
0
votes
2answers
151 views

Nagios not starting after boot

I have a small Nagios 4.1.1 install I just completed. It's running on a Raspberry Pi using Raspbian. Checks out okay, and when I start it manually using /etc/init.d/nagios start it works fine. I've ...
3
votes
1answer
42 views

Forward Nagios server state to a second server

Is there a way to forward the state of a Nagios server to a second Nagios server? I want to install a Nagios server which does the usual collecting of information about the machines and services on ...