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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4
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2answers
2k views

is Sensu a replacement for both CollectD and Nagios?

Trying to get my facts straight here. Is Sensu (pretty new kid on the block) meant to be a replacement for both the following?: Nagios (monitoring & alerting) collectD (feeding info to Nagios ...
3
votes
1answer
283 views

Using Nagios Event Handlers to bring system back in correct state

I'm pretty new to monitoring , config management, etc. so please bare with me. I've read up on config management / provisioning tools like Ansible and SaltStack. These sound pretty good to me and I ...
0
votes
2answers
826 views

High Iowait + High load average on a monitoring server

I've a nagios server which was perfectly working up to a few days ago. I've stopped it and restarted it to increase its RAM, and since then, iowait increased dramatically on the server (more than 20%, ...
0
votes
2answers
860 views

NRPE Issue Unable to Read output Check_Access_Log

In NRPE running xinetd I am able to run the script locally, but NRPE reports unable to read output when trying to run it remotely. Any suggestions?: [root@travel log]# ...
1
vote
2answers
798 views

Nagios admin doesn't have permission

I have installed and configured nagios on CentOS using yum I get "It appears as though you do not have permission to view information for any of the hosts you requested..." on the web interface. I ...
-1
votes
1answer
364 views

NRPE monitor a python process

I am new to Nagios. I understand setting up the service, etc. but I want to monitor some specific python processes that are running. When I set up the check_procs command for it to I give the -C ...
1
vote
1answer
531 views

Icinga Monitor Website for String

I am trying to use Icinga to monitor a website for a particular string. When I run the plugin from the command line, it seems to work fine, but in Icinga-Web, it always shows up as successful no ...
0
votes
1answer
531 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 ...
1
vote
4answers
494 views

Nagios (re-)send notification for service in OK state

Quite simple question: How could I set re-sending notifications in Nagios for service which doesn't change its state? I want to use it for fake sms. Service is allways OK (the whole script content is ...
0
votes
1answer
92 views

how can execute nagios commands from command line in linux

I am using nagios o centos server and i only want to monitor the localhost only. I have defined my service like this define service{ host_name localhost service_description Site1Service ...
-1
votes
1answer
111 views

How to send notification based on host and not service in Nagios? [duplicate]

Who that gets notifications are defined in the service and host definitions, but what I would like is that it is only defined on a pr host level. So whoever that is in the contact_groups for the host ...
3
votes
2answers
2k views

Possible to override contacts for just one Nagios host group?

The contact for all my linux hosts is the admins Nagios contact_group. But for this one Linux host would I like that the contact_group called sandradebug also gets notified. The problem is, that when ...
0
votes
1answer
729 views

Monitoring HP Proliant iLO whith perl script in Nagios

I'm trying to monitor an iLO with this script: ...
1
vote
1answer
582 views

Icinga (nagios) ignoring forced checks

I have a strange problem: Icinga (nagios) doesn't run check_nt which I've set up on a debian box. What I do is that I schedule a forced check of both NSClient_version and PING. If I look in the log ...
2
votes
3answers
3k views

What is a check_mk sticky comment when acknowledging a host/service?

I wanted to attach a comment to a system that is being monitored with Nagios. I prefer using check_mk as GUI. Now I stumbled across this: I can set a comment as sticky and/or persistent. So I asked ...
0
votes
0answers
220 views

Amazon EC2 Monitoring with Nagios Not working

I have setup the Nagios on a OpenSuse Server and it is working fine. I am trying to monitor a cloud instance using "Check_AWS_CloudWatch_metrics" ...
0
votes
1answer
807 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: ...
0
votes
1answer
476 views

.bat file - Nagios v3.2 service check and start if stopped

I'm just barely getting into programming so I do apologize for my ignorance. I'm trying to create a .bat file that will check if a service is running on XP Pro. If service is running it will exit 0. ...
0
votes
1answer
2k views

NSCA does not recieve pasive checks

NSCA seems to register the connection, as seems in the syslog, but for an unknow reason (at least for me) does not write it to icinga.cmd, or at least, read it. this is the syslog. Jun 27 ...
1
vote
1answer
99 views

Pause Nagios reloading in web interface

Is there any option how could I turn off reloading of web page in Nagios web interface? Many times I checked many services and I needed the webpage to stay static and don't reload. One solution come ...
0
votes
1answer
836 views

Unable to ping remote server Nagios

We've recently set up Nagios on one of our Amazon EC2 instances to act as a monitoring server to our other instances. nrpe was installed on our staging server stager and appears to be working fine: ...
-6
votes
3answers
208 views

how to monitor multiple systems in nagios [closed]

I am very new to nagios 3.4.4. I was able to set up and monitor the localhost machine. I tired to copy the localhost config to create a new host, which didnt work. Is there a place where i can find ...
3
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
222 views

dynamically adding new host in nagios

I having nagios server which monitoring xml files available in directory. Each xml file has unique id, based on the id i create the host in the nagios server with the help of configuration file. so ...
1
vote
1answer
93 views

Hierarchical Nagios NRDS Configuration?

As far as I understand it, each client runs NRDS off of a single configuration file. That is, a list of commands it runs whose results the client then sends to the Nagios Server. Is it possible to ...
0
votes
4answers
2k views

How can I use dynamic IP addresses with Nagios ping check?

I currently have problems monitoring up-time of a target machine in Nagios/Icinga that uses dynamic IP address. The network is using a Windows domain controller for DNS, Icinga server is running on a ...
2
votes
1answer
147 views

Setting an alarm until acknowledgment (Nagios\Icinga)

I am SNMP polling a router and checking the amount of errors on an interface. Since SNMP counters can not be cleared on the device I am storing the last value received in a temp file. If there is an ...
1
vote
1answer
240 views

Nagios: bash is missing

I'm monitoring NTP server with nagios and nrpe, at the nagios server, when I get the following error: Service Status UNKNOWN Status information I am missing an important component : bash The plugin ...
1
vote
1answer
1k views

NRPE: Unable to read output CentOS6

I am monitoring a CentOS 6 machine with NTP service installed. The monitoring server is a CentOS 5 machine with Nagios and Centreon. I'm using NRPE for monitoring remote hosts, and I get the following ...
0
votes
3answers
233 views

Is there a way to programmatically add a service to Nagios?

This question is only about creating services, i.e. we already know how to write Nagios plugins and set them up as services. I'd like to write a Python script to read each row of a MySQL database ...
0
votes
3answers
484 views

Getting alerts from remote Icinga/Nagios instance

I have an Icinga server (which is basically a fork of Nagios) at one of my clients' sites. I access the server via ssh and don't have access to other ports. Since there are a couple of things that ...
0
votes
1answer
126 views

Custom Nagios script not firing

Recently we've been experiencing a lot of spam hitting our servers causing apache to topple over. To tackle this we've installed nagios to notify us/run some restart commands if the issue arises. ...
-2
votes
2answers
157 views

I need help understanding how to set warn and critical thresholds for Nagios

I need help understanding how to set warn and critical thresholds for Nagios. I am currently using Nagios3 & NRPE & NSCLIENT. I have created a custom powershell script to check for running ...
0
votes
1answer
34 views

Adding extra Host details in Nagios

We are using Nagios to monitor our infrastructure, and i was wondering if there was any way to add extra information to a host (model, purchase date etc) Ideally i would like to be able to set this ...
1
vote
2answers
385 views

Nagios 3.5 doesn't send notifications

The automated notifications from Nagios 3.5.0 (on Ubuntu) don't seem to work and the error given is "No contacts were found for notification purposes. No notification was sent out". The below can be ...
0
votes
3answers
258 views

Text only nagios page

I was wondering if it is possible to set up nagios to both display its normal page (e.g. critical alerts) in its normal format (red for all alerts on its critical page) and in a basic text format (no ...
2
votes
3answers
345 views

Notify when a message did not occur

In Nagios it is easy to check that a log message happened in the last 48 hours and sound alarm. But how can I configure Nagios that it should sound alarm when a message did not occur in the last 48 ...
0
votes
2answers
48 views

Nagios - Service checks for all but notify in work hours for some

I have a group of machines all running the same checks. Within this group there are dev machines and prod machines. I only want to be alerted to the checks after hours when the machines are prod ...
0
votes
3answers
4k views

How to export a list of all monitored hosts in Nagios?

In Nagios 2 and 3, I'm looking for a way to export a list of all monitored hosts to either CSV or XML or something similar.
0
votes
1answer
541 views

Re-process all nagios data with pnp4nagios

I have moved to a new nagios installation (new server). I have transfered the data from the original server (/var/log/nagios2/archives) to my new server (/var/log/nagios3/archives) (I think they have ...
1
vote
2answers
581 views

nagios servicedependency wildcard not expanding

to reach customer-es-prd-dobb1, the packets must traverse a (client based) vpn via the host "cust-client-vpn". The intermediary host has a check named "customer-prod-vpn" which monitors the health of ...
1
vote
1answer
1k views

nagios - https active service fails (error while receiving)

I want to check the availability of a SSL Web site (https) with nagios. I have add a command to the command.cfg: define command{ command_name check_http_myserver_Demo command_line ...
0
votes
1answer
134 views

Why is “Nagios Not Running” in availability report 0 when alert log shows it down for long period

Back in February our nagios host was shut down for almost 40 minutes. From my alert log: [02-06-2013 13:39:54] Nagios 3.4.4 starting... (PID=3687) [02-06-2013 13:01:17] Caught SIGTERM, shutting ...
0
votes
0answers
247 views

nagios volatile service and system time change warning

I have a nagios service with volatile option on (executes event handler every time it encounters a non-ok hard state). Problem is that if the event handler executes for 2-3 times (that is the expected ...
0
votes
1answer
412 views

Nagios Make Error

I'm having an issue with installing a nagios server. I'm not linux genius but I know a bit of the basics but I wasn't really sure where to go from here. I think I've got all the dependencies ...
0
votes
1answer
383 views

Nagios/Icinga check of Windows disk space, wrong -l argument

I'm using NSClient++ on the Windows servers and all other checks are working fine. I'm using the default nt_check config, but these show up as "services unknown" define service{ use ...
1
vote
3answers
293 views

Nagios 'exclude' directive does not exclude timeframes

I tried to set up my nagios install to check the availability of a SMTP service outside its backup hours. Unfortunately, it seems to be ignoring this configuration: # a timeperiod to check only ...
3
votes
1answer
4k views

CHECK_NRPE: Error - Could not complete SSL handshake

I've just moved to a new nagios server and have got all the old hosts/services working. There is just one host that will not allow nrpe checks, producing an error on the nagios server as in the title. ...
4
votes
2answers
6k views

Nagios - new user doesn't get enabled permissions

I follow simple steps from guides all over the web: a) add an user to Nagios via command htpasswd htpasswd.users username b) in cgi.cfg file add this user to lines: ...
2
votes
1answer
373 views

Nagios, Cisco switches, lost packets

I use Nagios to monitor about 30 Cisco 2960 switches (check_snmp_load, check_snmp_int). I only check load and one or two backbone interfaces of every switch. I get a lot of false positives caused by ...