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
2k views

FreeNAS/FreeBSD: How to access status of ZFS volume from jail?

I am trying to set up NRPE to enable remote Nagios monitoring of a new FreeNAS 0.91 system. I mostly have this working. I can connect and inquire about basic information like number of processes, ...
0
votes
1answer
74 views

Nagios Selinux contexts on RHEL7 equivelant

I installed nagios core and plugins for the first time, and can't get it to work with SElinux. The error in the audit log is, type=AVC msg=audit(1441480084.865:710): avc: denied { execute } for ...
1
vote
2answers
6k 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
3answers
1k views

monitoring switches with Nagios

I'm trying to monitoring switch with Nagios. I had made everything like in this tutorial, but I'm getting Status Information in Nagios browser window like this: (Return code of 127 is out of bounds - ...
3
votes
1answer
226 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 ...
4
votes
1answer
3k views

How do I Display Nagios Host Custom Variables or Macros in the Web Interface?

How can I display custom host variables in the Nagios web interface such as _mac_address?
-2
votes
1answer
305 views

How does one add commands to nrpe.cfg for Percona MySQL plugins on NRPE client? [closed]

How do you add commands to nrpe.cfg for Percona MySQL plugins on NRPE client? To configure percona-nrpe plugins for mysql you will have to do 3 things viz : 1. define commands in command.cfg 2. ...
2
votes
1answer
28 views

What services does Nagios notify per contact?

In Nagios 3.2.3, I'd like to see all the hosts/services that send notifications to a specific contact. Is that possible?
3
votes
1answer
1k views

embedded white space in nagios arguments

I created my own nagios command $USER1$/check_http -H $HOSTNAME$ -p $ARG1$ -u $ARG2$ -e $ARG3$ -w 5 -c 10 -4 used by a new service. When the $ARG3$ contains some white space (for instance "200 ...
1
vote
1answer
2k views

Is there a way to more detail on this error message “Error processing object config files!” from Nagios

I am migrating from Nagios 3.2.3 to 4.02 and I am stuck with a non-specific error message: Is there a way to coax some more detail out of Nagios Core? I get no clue from the attached error output ...
1
vote
2answers
86 views

Nagios Host Stacked Graphs

I've got several identical front end web servers which are monitored by Nagios for various services and host performance stats (application metrics, memory, cpu etc...). I also use the graph explorer ...
1
vote
1answer
174 views

Nagios/NSCA: Command file '/var/nagios/rw/nagios.cmd' does not exist

I installed nagios on Centos and I also want to enable NSCA on the host. The client is already configured and is sending data (I can see it when I tail the logs). However, I'm seeing the following ...
1
vote
1answer
2k views

NagiosXI return code of 126

Hey guys i have installed a new nagios XI installation using the vmware image. I am getting the following error (Return code of 126 is out of bounds - plugin may not be executable) This is showing ...
0
votes
1answer
99 views

Not getting Proper output for check_iostat for nrpe plugins

My iostat is giving following output $ iostat Linux 3.13.0-29-generic (Inksedge) 08/13/2015 _x86_64_ (4 CPU) Device: tps kB_read/s kB_wrtn/s kB_read kB_wrtn xvdap1 ...
1
vote
1answer
105 views

How to determine what command is run in a Nagios service?

I'm trying to debug why a Nagios service is failing; AFAIK, it began failing suddenly, without any change being made that we're aware of. I'm attempting to find a principled way to go from service to ...
4
votes
4answers
9k views

NRPE and the $USER1$ variable

I have NRPE daemons running on all of my remote Linux boxes. I have a couple configurations in place and I'm trying to standardize the paths in my nrpe.cfg. The changes are deployed via Puppet. I ...
2
votes
1answer
70 views

NRPE 2.15 - check_procs not showing right value

I've got Nagios Core Version 4.1.0rc2 configured server-side with a client running NRPE 2.15. I've got the two devices properly communicating using the check_nrpe command, but for whatever reason the ...
1
vote
1answer
340 views

NRPE check parameters getting lost

I'm running Shinken and have a pack which includes several commands that run bash scripts on the monitored host via NRPE. I have a check on the host which runs a bash script that takes 4 parameters. ...
1
vote
1answer
287 views

check_mk: global name 'entry' is not defined

I'm having a ton of trouble with a nagios installation I've been working on powered by check_mk and OMD. When using the web gui to manage check_mk, the notifications page displays the following Python ...
7
votes
7answers
8k views

How do I refresh nagios and stay on the current page?

Ever since I updated to nagios 3.2.1 from 3.0.6 I can no longer refresh any status pages. When I refresh, it just goes back to the "home" page of nagios, forcing me to drill back down to whatever I ...
0
votes
1answer
85 views

Debugging Nagios notification failure

I have spent the day setting up custom twitter notification on nagios. Everything seems to be in place and the notifications seems to be triggered but the script is not called. my contacts ...
0
votes
1answer
643 views

check_mk Nagios Plugins

I am trying to move from Nagios to OMD, however, I have a Nagios plugin which I really need (phpfpm) but I am unable to add the plugin to check_mk. On the check_mk website says that you should use ...
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votes
2answers
229 views

VMware ESXi 5.5.0 server - nagios monitoring [closed]

I have a VMware ESXi 5.5.0 server and I want that my Nagios server can monitor it. How can I install the nagios-tools on the ESXi 5.5.0 server?
1
vote
1answer
109 views

Why are my passive checks not processed?

I have the following service configuration to capture SNMP traps: define service { name SNMP_TRAP service_description SNMP_TRAP ...
5
votes
5answers
6k views

Nagios Multiple servers config files

I'm already configuring a Nagios setup to monitor about 30 Windows servers. Now i am adding every servers definition to the Windows.cfg file but i think would be easyly configurable to have one .cfg ...
3
votes
3answers
2k views

Nagios plugin to take process snapshot when load is high

We have configured Nagios with check_load via NRPE plugin to monitor server load, it reports when load is high, but does not have option to take a snapshot top processes (like top command) at that ...
1
vote
2answers
5k views

Monitor a HTTPS site requiring login with Nagios

I'm trying to figure out how to get Nagios to monitor a few sites that are using HTTPS and require a username/password to log in - I can't figure out how it should be done so I can set a username and ...
1
vote
1answer
320 views

Nagios: Could not resolve hostname

My setup: hosts.cfg - contains definitions for each host under monitoring, e.g.: define host{ use linux-server host_name rdss-vpn ...
0
votes
0answers
235 views

How to install and configure Nagios-MNTOS?

I just tried to configure MNTOS for my 2 Nagios server. I'm very new to this tool. I do not get a clarity on the installation. Should i install MNTOS on a separate server or any of my 2 Nagios ...
4
votes
3answers
572 views

Weird Extended Information on Nagios Web UI

Below are screenshots when I click on any Service/Host Extended Information: The weird info at the top: The content of line begin with __gmon_start_libc.so...: ...
-1
votes
2answers
49 views

Checking ldapsearch and ldapsearch -h 127.0.0.1 -Z -x in nagios [closed]

Basically I just want to ensure whether ldapsearch and ldapsearch -h 127.0.0.1 -Z -x I did some check_ldap command and it's fine but I specially want to verify ldapsearch and ldapsearch -h ...
0
votes
1answer
351 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 ...
7
votes
5answers
32k views

What Warning and Critical values to use for check_load?

Right now I am using these values: # y = c * p / 100 # y: nagios value # c: number of cores # p: wanted load procent # 4 cores # time 5 minutes 10 minutes 15 minutes # warning: 90% ...
6
votes
6answers
13k views

Use Nagios to monitor a log file and send log details

I know Nagios can monitor and alert on the content within a log file, but does anyone know of a plug-in, or other tool, that will monitor a log file for a particular string and then send the entire ...
0
votes
0answers
271 views

check_snmp plugin on nagios returns: External command error: snmpget: Authentication failure (incorrect password, community or key)

I’m trying to check the uptime of a Cisco 2960X switch on Nagios with check_snmp plugin but I always get the following error: [root@nagios]# /usr/lib64/nagios/plugins/check_snmp -P 3 -U snmpv3user -L ...
2
votes
2answers
41 views

Define service for all hosts that belong to all the given hostgroups

I can not figure out how to create a service for all hosts that are in 2 given hostgroups. Example hostgroups: oracle: hostA, hostB prod: hostB, hostC Now I need a service for all hosts that are ...
5
votes
3answers
14k views

Nagios alert by email for WARNING and pager for CRITICAL [duplicate]

I want to set Nagios up to issue warnings (e.g. mildly high load or disk usage) via email, but for critical items to alert by pager. Right now we notify via email and pager simultaneously for all ...
0
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0answers
14 views

Monitor Log File With Nagios based on description [duplicate]

We have a Log file on our system which monitors our back-up system. If there is an error in the backup system, an error message is added in the log file. Can we monitor that there is an error message ...
2
votes
3answers
7k views

How I can check for exact amount of space (MB or GB) in Nagios using check_nt command instead of percentage used value?

How I can check for exact amount of space left (MB or GB) in Nagios using check_nt command instead of percentage value? Currently I'm using this command: check_command ...
0
votes
0answers
84 views

How to forward incoming SNMP trap from Nagios To Other Application

I have a setup in which all devices are sending snmp traps to Nagios. I have a application behind Nagios which will processes snmp traps. Now what I want is every snmp trap coming to Nagios should be ...
1
vote
2answers
125 views

check_nrpe ssl couldnt complete handshake, in both master and client server it works fine individually

I am getting this check_nrpe ssl couldnt complete handshake error in master server when I try executing the below command. /usr/local/nagios/libexec/check_nrpe -H 10.192.122.234 10.192.122.234 ...
1
vote
1answer
308 views

Remotely monitoring ISC DHCP Server with Nagios

I have a WAN and I'm trying to use Nagios to check that a DHCP server in a subnet not directly visible to the Nagios box is up and handing out IP addresses, and I've been unable to make this work. I ...
0
votes
2answers
10k views

Cannot get check_uptime plugin for Nagios to work. Unknown status?

Hoping you guys might be able to spot what i'm missing here. I'm not able to get a simple check_uptime plugin to work in Nagios. When I invoke help for the plugin using: ...
-3
votes
1answer
122 views

which port is used on nagios check_nrpe, is the ssh connection is must between nagios master and client server [closed]

I have configured the nagios master server and nagios client servers, still after lot of debugging i couldn't achieve the communication btwn these two :( i am getting this generic error CHECK_NRPE: ...
4
votes
2answers
2k views

nagios contact groups to check_mk

I have Nagios installed with traditional configuration files. I have created some contact groups and assigned them to hosts. For web UI I'm using check_mk. And here's the question: Check_mk supports ...
-1
votes
1answer
52 views

Monitoring Processes in Detail - not summarized [closed]

I want to monitor the running processes of a linux machine over time. My do-it-yourself solution would be: Dump ps aux --forest every minute to a file. Background: If I get a message "something ...
0
votes
1answer
74 views

Nagios 4.0.x - Mail notification only sending to the first contact of contactgroup

I have a working Nagios solution since about 4 years. I noticed some time after updating Nagios 3.5.x to a 4.0.8 version, one person havn't received any error notifications. Nothing changed on our ...
4
votes
1answer
197 views

What is a solid process for designing a monitoring system?

The short version: I've got a heterogeneous environment of ~400 hosts using Groundwork/Nagios for monitoring. The current checks, hostgroups, and servicegroups have been put together in an organic, ...
2
votes
1answer
165 views

Change filename format for Nagios archived logs to use different date format?

I have just set up a Nagios server, and by default it keeps archives of the log messages in /var/log/nagios3/archives. However the files are named with US style date format, like ...
1
vote
0answers
904 views

UNKNOWN: No handler for that command

I have the check_task.vbs placed in C:\nsclient++\scripts on a Windows Server 2008 R2. I defined in the NSC.ini a NRPE Handler like this: [NRPE Handlers] check_task=cscript.exe //NoLogo ...