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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1
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2answers
24 views

On call schedule rotation nagios 4

I have a monitoring platform installed under a RHEL 6.5 OS in a virtual machine (VMWare EsXi 5.1) consisting of nagios 4.0.7, mrtg 2.17.4 and cacti 0.8.8b. I was upgrading my contacts.cfg file and my ...
10
votes
9answers
23k views

NRPE unable to read output, but why?

I have this problem with NRPE, all the stuff I've found so far on the net seems to point me at things I've already tried. # /usr/local/nagios/plugins/check_nrpe -H nrpeclient gives NRPE v2.12 as ...
2
votes
2answers
75 views

Allowing nagios plugin check_dhcp to work without setuid root

Nagios has a plugin, check_dhcp, that does exactly what you'd think. It's widely suggested to install it setuid root, because it uses SO_BINDTODEVICE, which usually only root can do. Of course a ...
0
votes
0answers
25 views

SMNP Monitor Cloud Service [on hold]

Need to monitor a few remote Cellular routers, they are SNMP capable. Looking for service to see if if they are up, and alert if not. 1.- Should the monitor be active or passive? Routers have ...
0
votes
1answer
2k views

NSClient++ FAIL on Windows 2008 R2 — PDHCollector.cpp(215) Failed to query performance counters

I am attempting to monitor windows server 2008 r2 x64 Enterprise with Nagios. When I test/install the nsclientI get the following error: PDHCollector.cpp(215) Failed to query performance counters: ...
-3
votes
0answers
19 views

Truncating return data as it is bigger then NRPE allows

I'm using latest NSCLIENT on a Win Server 2012, and see: Truncating return data as it is bigger then NRPE allows in the log file. How can I fix this?
0
votes
2answers
56 views

What is the default location to store nagios snmp user variables?

I'm taking over a nagios server and trying to figure out where the previous admin kept his snmpv3 user and password variables, would anyone have a clue where the standard location for this is?
0
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1answer
13 views

check_http!--ssl actually checks http

When monitoring the SSL service on a host that runs HTTPS but not HTTP, Icinga warns about a 403 Forbidden return code. But that warning is for HTTP, not HTTPS. Manually running the check_http ...
-1
votes
1answer
22 views

Nagios Schedule a Check on Command Line

I use Nagios Core 3.5.1. In order to skip the HTTP authentication (guest user without password could also be tedious), I turn off the Nagios authentication based on this article. (even though turning ...
-2
votes
3answers
131 views

Installing check_logfiles Nagios plugin [on hold]

i want to install the check_logfiles Nagios plugin. The installation step says that After unpacking the tar-archive you have to call ./configure. With ./configure --help you can show the options ...
0
votes
1answer
1k views

check_http --ssl still checking HTTP

Shouldn't the following command return an HTTPS/SSL status code? $ check_http --ssl google.de HTTP OK: HTTP/1.0 302 Found - 984 bytes in 0,099 second response time |time=0,099305s;;;0,000000 ...
0
votes
0answers
12 views

How to monitor primary and backup nodes

Currently we are running Nagios 3 on Linux which monitors Node-A (Primary) . As part of a new requirement (Geo-cluster support), we introduced a Backup Node (Node-B) for above primary node so that ...
1
vote
0answers
26 views

Nagios plugin check_snmp_int does not match regular expression

I am using nagios plugin check_snmp_int with -n switch. Help show: -n, --name=NAME Name in description OID (eth0, ppp0 ...). This is treated as a regexp : -n eth will match eth0,eth1,... ...
-2
votes
1answer
264 views

Nagios/Gammu, nagios user can't send sms

I have a Nagios, and Gammu installed. When I use gammu as root, like the following : /usr/bin/gammu identify (or else) It works, but when I do it as nagios user, i got this answer : Can't open ...
0
votes
1answer
20 views

icinga nrpe executes locally instead of server

I am very new to icinga. In fact I finished setting it up today. I am trying to monitor a bunch of stuff on my nrpe machines. I set up my services in /etc/icinga/objects/my.server.com.cfg and ...
-1
votes
0answers
19 views

Send snort alerts to a remote system [on hold]

I have a snort system ( Debian 7.1, snort 2.9.4.0 ) and Barnyard2 is also installed. I want this snort system to be monitored by a nagios server remotely. I have installed NSCA to send alerts to the ...
0
votes
2answers
2k 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
vote
0answers
14 views

icinga-web not updating icinga status properly

I have a problem similar to this one... if you look at the photo there, you'll see that the icinga server is marked as down. I checked everything according to the answer given there, but it has ...
1
vote
0answers
34 views

Nagios 3.5 can't send notification email despite nagios logs ok / centos6

I spent hours trying to make nagios send email notification. my contact configuration is quite simple : I juste have one : nagiosadmin, and he is the default contact. In /var/log/nagios.log, nagios ...
1
vote
1answer
2k views

Nagios interval_length and check_interval

I am getting a little confused with Nagios timers. Whilst testing, I set a failure that was not picked up for around 5 minutes. I am not much more than pings and http checks and I really want to step ...
2
votes
0answers
23 views

Overriding Nagios hostgroup service with host service

I currently am experimenting with defining a set of services to all hosts in a hostgroup, this is working fine. My issue is that I then want to be able to override these service definitions which ...
0
votes
2answers
1k views

check_ssh executed from Nagios server returns “Server answer: ”, nothing else

Commmand works on the host I need to monitor (its IP is denoted as $HOSTADDRESS$ here): [root@host ~]# /usr/local/nagios/libexec/check_ssh localhost SSH OK - OpenSSH_4.3 (protocol 2.0) However, on ...
2
votes
1answer
1k views

Where are Nagios Availability-Report files stored?

How to access Nagios Availability-Report files to retrieve "UP Time Percent" and so other information about Hosts and Services? I know It can be accessed through Nagios CGI but I want to use it on a ...
1
vote
1answer
24 views

Nagios check fails: UWSGI CRITICAL: could not connect() to workers Operation now in progress

All seems to be installed and work as it should (site/server is running) but keep getting this error: UWSGI CRITICAL: could not connect() to workers Operation now in progress when running: uwsgi ...
1
vote
2answers
1k views

Nagios NRPE “No Output returned from plugin“ error

So I've just started configuring Nagios in my environment and I'm getting the above error when trying to user the NRPE plugin. The host file is as follows: define { host_name servername ...
0
votes
1answer
2k views

Nagios 403 forbidden, indexes?

I installed nagios under freebsd 9, but can't figure out the right way for it to be public in the browser (from other pc's). I think that the problem is in the indexes or that there is no index file ...
2
votes
0answers
47 views

Why isn't snmptt translating this trap?

I have a device that is sending snmp v1 traps and snmptt cannot translate them. To grab a copy of the trap, I stopped the snmptt service, and copied the trap to /tmp. The OID I'm trying to trigger ...
1
vote
1answer
198 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 ...
1
vote
2answers
28 views

Orthogonally defining services and contacts for a host/hostgroup?

I'm trying to turn our Icinga spaghetti into something more manageable and less repetitive. So far features like templates, object inheritance, multiple inheritance, hostgroups, servicegroups, etc ...
2
votes
1answer
39 views

How to test nagios send_nsca with netcat

I am trying to write a unit test of send_nsca using nc but it is failing. I want to start nc to listen to the nsca port and then use send_ncsa to send a message to that port. In one terminal I am ...
2
votes
2answers
795 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 ...
0
votes
1answer
305 views

NSClient++: Invalid return code -1073741502

I got a problem with NSClient++ (version 0.3.8.76). I set up an external script handler, and it was working. But since some time it returns this, everytime i run the check: No output available from ...
4
votes
1answer
35 views

Custom nagios command, append $HOSTADDRESS$

I'm very new to nagios, and trying to get a custom command to bend to my will. I have looked through various examples, and can't find anyone appending the $HOSTADDRESS$ macro, so maybe I have to go ...
0
votes
1answer
704 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 ...
0
votes
0answers
30 views

'check_tomcat.pl' plugin returning CRITICAL: /manager/status?XML=true HTTP/1.1 404 Not Found

I don't know what I'm doing wrong. I'm trying to use this plugin, check_tomcat.pl but it doesn't seem to be configured correctly. Keeps returning the error: CRITICAL: ...
1
vote
1answer
2k views

What is the correct way to stop the nagios ndo2db daemon?

What is the correct way to kill Nagios's ndo2db daemon? When I shutdown nagios and ndo2db I do the following: /etc/init.d/nagios stop /etc/init.d/ndo2db stop and I see the following in nagios.log: ...
0
votes
1answer
39 views

Nagios check_snmp (New Response) CRITICAL 7

I have got a new critical figure / output as 7 SNMP CRITICAL - *7* What does above 7 refer to?
0
votes
1answer
883 views

nagios check_snmp ifoperstatus not OK

I'm reading Monitoring Routers and Switches page, in particular "Monitoring SNMP Status Information" section. quote: In the example above, the "-o ifOperStatus.1" refers to the OID for the ...
0
votes
1answer
50 views

Setting downtimes in Nagios/Icinga via SCCM

At our company we have quite a lot of Windows 2012/2008 servers which are updated automatically (and sometimes rebooted) via SCCM. All our servers are monitored via Icinga/Nagios. If the servers are ...
1
vote
1answer
1k 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 ...
2
votes
1answer
88 views

Nagios check for wuauserv on Windows Server 2008+

From Windows Server 2008+, wuauserv is no longer a service that's ran all of the time and is instead ran as a scheduled task. I'm not sure of the exact behavior of how the scheduled task is created as ...
3
votes
4answers
4k views

nagios nrpe check_procs wrong return value

I have a problem with my nagios monitoring. I'm trying to check a process on a remote host using nrpe. The host was already been monitored by nagios, so I only needed to add a line to the nrpe.cfg ...
0
votes
0answers
33 views

Nagios sends out emails with Attachments

I use NSCLIENT to run a custom powershell script that echos a few lines of text. From what I noticed, after echoing more than 2 lines, the alerts received via email from Nagios have the body empty and ...
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votes
0answers
34 views

how to add new plugins to nagios core

I have a centreon 2.5 server with nagios 3.2, I want to add new plugins from exchange.nagios.org. I have dropped the command check_apachestatus2.pl to /usr/local/nagios/libexec and am an trying to run ...
0
votes
0answers
10 views

CheckMK template does not show up

I following this checkmk guide to monitor disk parameters: http://dev.vemarsas.it/documents/32 I restarted the nagios multiple times and rescanned the hosts. Any idea why?
2
votes
2answers
5k views

How to monitor log files via Nagios

Is it possible that i can monitor . kernel log messages , apache error logs , mail log messages via nagios. I have three linux servers and i want that on every server there should be something so ...
2
votes
3answers
632 views

nagios wrongly reports packet loss

Lately, on my nagios 3.2.3 install (CentOS5, monitoring ~ 300 hosts, 1150 services) has sdtarted to occasionally report high packet loss on 50-60 hosts at a time. Problem is it's bogus. Manual runs of ...
1
vote
1answer
242 views

“CHECK_NRPE: Socket timeout after 10 seconds” HTTPS / SSL

I have configured NAGIOS server on IP address AA.BB.CC.DD (Linux Fedora 20), and Monitoring the host with IP address LL.MM.NN.OO (Linux Fedora 20). I have configured NRPE to run on port # 15666 ...
0
votes
0answers
34 views

Nagios external commands getting processed intermittently

I have a script that runs every 10 mins that updates the Host Comments field in Nagios. There are about 600 hosts and I am seeing some issues. The script deletes the previous comments and adds new ...
0
votes
0answers
23 views

Adding services to NagiosXI

I am trying to configure nagiosgraph-1.5.1 in NagiosXI installed on RHEL6.1. I have followed this guide and everything worked fine till some point. Under the subheading "Adding Service to ...