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
20 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 ...
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2answers
26 views

Nagios NRPE: unable to read output for custom check

I have written a custom ruby script to check disk usage for each volume on an ubuntu server. The servers are controlled by puppet and the nagios system has been running for years and contains a number ...
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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 ...
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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 - ...
2
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1answer
2k views

Nagios NRPE plugin check_ad - Fixed

i've reading about this problem much and trying to solve it on my own ways but still not luck. I've running debian 7 as nagios server. Problem is that i cant check state of my Active Directory Domain ...
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0answers
19 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 ...
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3answers
24 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 ...
0
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1answer
24 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 ...
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0answers
42 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 ...
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0answers
14 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 ...
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1answer
1k views

Nagios notifications definitions

I am trying to monitor a web server in such a way that I want to search for a particular string on a page via http. The command is defined in command.cfg as follows # 'check_http-mysite command ...
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4answers
21k 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 ...
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3answers
1k views

How to configure sendmail using nagios?

I have installed RHEL 5.4 in my system. I have installed and configured nagios in RHEL 5.4 and nagios is working fine. When I give email address of my gmail in contacts.cfg of nagios configuration ...
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6answers
9k 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 ...
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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 ...
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2answers
1k views

Where does check_mk store configuration files?

I'm a little new to the check_mk/nagios/monitoring world. I'm experimenting with omd 1.0 as an easy way to get it all set up and working on an Ubuntu host. So far, things are great! With all the work ...
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1answer
40 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 ...
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1answer
42 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 ...
2
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1answer
30 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 ...
2
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1answer
1k views

Nagios: Send Escalation Alert if issue is Acknowledged but not Recovered (OK State)

I think I know the answer (not possible) - but want to see if anyone has a clever idea or perhaps I'm just wrong about the issue. Goal We want our shift managers to be notified of service outages ...
0
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1answer
48 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 ...
0
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1answer
1k views

installing old MySQL client libraries (libmysqlclient.so.15, libpq.so.4)

I'm attempting to install Nagios plugins on a Zimbra 8.0.2 server running CentOS 6.4, but have run into the following error when I run yum install nagios-plugins-all Error: Package: ...
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2answers
1k views

nconf cannot generate nagios configure files

I installed a brand new nagios server and installed a fresh nconf. I just need to see how nconf can generate the configure files for ngaios. But after I click Generate Nagios config, I got: Nagios ...
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1answer
156 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 ...
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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
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1answer
32 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 ...
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2answers
966 views

Nagios plugin to monitor health of FreeSWITCH?

Is there a Nagios plugin to monitor the health of a FreeSWITCH server? It could either be on the server side or installed on the client. The Nagios Exchange doesn't show any results for a search of ...
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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 ...
6
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4answers
1k views

Hardware checks for Dell R820 Servers through Nagios using SNMP

We use Nagios for monitoring. Is there a way to create hardware checks using SNMP MIB for R820 servers running ESXi5.x on them? Right now we are using this python plugin: current python plugin But ...
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1answer
25 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 ...
2
votes
1answer
7k 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 ...
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6answers
3k views

Nagios Check that Simulates Web Full Rendering Time

Does anyone know of a Nagios plugin or cli program that can simulate the load time of a webpage as it would be in a browser. For example the resulting total load time of something like Pingdom's Full ...
2
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1answer
89 views

Monitoring maximum number of locks in PostgreSQL with Nagios

I'm wondering if the limit for the number of locks in PostgreSQL is fixed, or if it depends on the number of open connections. The docs say the limit is max_locks_per_transaction * (max_connections + ...
2
votes
1answer
58 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 ...
2
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1answer
162 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 ...
3
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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 ...
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6answers
18k 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
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2answers
42 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 $HOSTADDRESS$ ...
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1answer
29 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 ...
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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. ...
2
votes
4answers
4k views

Nagios - measuring Average CPU Load

I've been looking for some hours now for a plugin that will notify me if one of my server's CPU Load has been over 90% for the past 5 hours. No luck looking around the Nagios Exchange. Can anyone ...
0
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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 ...
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3answers
4k 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]: ...
2
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1answer
1k 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: ...
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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 ...
0
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1answer
619 views

Nconf install not detecting perl

During my Nconf install I get Requirements PHP 5.0 (or higher) -> 5.3.10-1ubuntu3.4 OK MySQL 5.0.2 (or higher) -> 5.5.24 OK PHP-MySQL support OK Perl 5.6 (or ...
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0answers
62 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 ...
0
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2answers
373 views

Is it's possible to have SCOM interrogate Nagios to get the status information of hosts?

When I said 'like' in the subject, that was just because the English language requires that syntax! I do not like SCOM! But business requirements are almost forcing me to use this as my main pane of ...
2
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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 ...
5
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3answers
19k views

Nagios: NRPE: Unable to read output, Can't find the reason, can you?

I have a Nagios server and a monitored server. On the monitored server: [root@Monitored ~]# netstat -an |grep :5666 tcp 0 0 0.0.0.0:5666 0.0.0.0:* LISTEN ...