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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0
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1answer
217 views

Apache and LDAP Authentication

We are using Apache mod_authnz_ldap to authenticate users to Nagios using our LDAP Active Directory. Right now it is working with using SamAccountName. However, Nagios is using the SamAccountName as ...
0
votes
5answers
235 views

NRPE Home Directory

I'm using NRPE and I a rather annoying problem. I need a couple temporary files written to the home directory of the user NRPE is running under (nagios). I checked that the /etc/passwd entry for ...
0
votes
2answers
781 views

SNMP timeout in nagios

Why would I be getting "WARNING - SNMP check timeout." in nagios? (For various things like load and disk space checks) snmpd is running fine on the machine being checked. Please let me know what ...
0
votes
1answer
99 views

Monitor Linux services with Nagios 4 [closed]

I'm trying to monitor a few RHEL7 services via Nagios. I'd like to monitor if the services are running or stopped and receive an alert when stopped. I haven't any out of the box option with Nagios 4 ...
6
votes
2answers
5k views

Checking a secure website with Nagios

I want to create a nagios check of my secure website. All the check needs to do is login to the site with login details that I pass the script. Does anyone know of a plugin or script that will allow ...
1
vote
2answers
338 views

omd nagios monitoring servicestate mssql / Failed to open service

I'm trying to monitor mssql service in OMD nagios, but with no success so far. Communication port: 1433 instance name is like: MSSQL$instance Here's my check: check_command check_nt!SERVICESTATE!-l ...
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votes
0answers
41 views

Nagios Core 3 Check_AS400

I'm monitoring several iseries LPARS with Nagios 3.5.1 running Ubuntu 14.04. I downloaded the .CLASS check_AS400 plugin and followed the instructions. I have a hidden file .as400 that houses the sign ...
0
votes
1answer
112 views

Nagios: how to monitor supermicro based systems

I have several older supermicro based NAS devices. Happened to be at our hosting facility today and saw that one had a disk failure. I thought that I was monitoring this via SNMP->Nagios but clearly ...
0
votes
0answers
240 views

Nagios 4 on Centos 7 - Old server

I am trying to install Nagios 4 on an old Pentium 4 machine running Centos 7. I have installed the OS from the x86_64 ISO provided at the website. Nagios is downloaded with wget from Sourceforge. I ...
0
votes
2answers
119 views

What controls the Y-axis of data drawn into graphs?

I've recently set up Nagios for a client and have been wondering about some of the graphs we get out of NagioGrapher. For example, all systems use the same graph configuration for their physical ...
-2
votes
1answer
197 views

NRPE: Unable to read output locally

I am running /usr/lib64/nagios/plugins/check_nrpe -H 127.0.0.1 -c check_disk as root yet get NRPE: Unable to read output. Any help?
1
vote
2answers
52 views

How can I monitor “primary and secondary” Cognos nodes?

We have several Content Managers in Cognos that are running: one as a primary, one as a secondary. I would like to be alerted if there isn't one node acting as primary, if the primary node changed, ...
1
vote
1answer
55 views

Nagios compilation error on Centos

I am trying to install Nagios 4 on a Centos 7 machine using the instructions found here. When I get to the compilation and input make all I get this error: make[1]: *** No rule to make target ...
1
vote
2answers
68 views

Set different warning thresholds for Nagios on weekends

I'm using Nagios to monitor CPU usage on my servers with the check_load plugin. On weekends we have some batch jobs running and there are hardly any real users anyway, so I'd like to have the warning ...
1
vote
2answers
91 views

Nagios: check host service even if host is down

Is there a way to force nagios 3 to check a particular host's service (and notify such events) even if the host is down? The reason I ask so is that I have a service that checks if a host's IP ...
1
vote
1answer
26 views

Nagios Notification Period Setting, Will Nagios Hold the Email?

I am sorry for getting a little lazy not to try it out, but considering it may be helpful for others too, so I ask this question. If I set Nagios notification period like: 7 am - 5 pm, Mon-Fri Once ...
1
vote
1answer
172 views

Negative values for storage size over SNMP

We ran out of space on a 5 TB volume on a Windows storage server, so we copied the data into a new 10 TB volume. Now our nagios-based monitoring is reporting data I'm not happy with. When I looked ...
1
vote
1answer
91 views

DataStax OpsCenter 5.0.0 API doesn't increase last_seen when nodes down if DataStax OpsCenter Agent is down, used to work with 3.2.2

I've been using the DataStax OpsCenter (Enterprise) 5.0.0 REST API with DSE 4.5.1 (Cassandra 2.0.9) to query the /$cluster_name/nodes endpoint and see the last_seen field for the number of seconds ...
3
votes
2answers
1k views

Nagios child/parent relationship for host that is reachable by multiple paths?

Consider the following network setup below: Further, assume that Switch 1 and 2 are managed switches, but only have an IP address assigned on vlan3. How would you set up the parent/child tree for ...
0
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2answers
86 views

Nagiographer on Debian Wheezy work partialy

I made standard installation which is Nagios3 + Nagiosgrapher on Debian 7.6. In /etc/nagios3/nagios.cfg I added: process_performance_data=1 and ...
0
votes
1answer
53 views

nagios core v4, please help me add more service checks for a single host

I am having difficulties understanding the documentation and would appreciate clarification. I have NRPE and nagios plugins installed from source on both the nagios server and its clients. Can ...
2
votes
1answer
2k views

Nagios NTP, discarding peer

We're using nagios *check_ntp_time* for monitoring time on our servers. Unfortunately the service is flapping. And reporting a lot of false-positives. It happens everytime for random server in random ...
0
votes
1answer
89 views

New nagios/cacti monitoring setup, should I use a dedicated VM?

Currently we have 4 bare metal servers and one small VM server (all running centos6) and I'm looking at setting up monitoring for the Percona MySQL db server and replication slave (bare metal), as ...
1
vote
1answer
56 views

Nagios/Icinga: different passwords for each NSClient++ host

Is it possible to pass a different password to the check_nt/check_nrpe command for each windows host I have defined in my icinga configs? For example, I have 3 windows hosts define host { use ...
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votes
2answers
40 views

Nagios Wrapper Script that Checks board [closed]

I am in need of a kind of automation script or program run in the Linux environment that can check my Nagios board and can display results or store it's results of the Host, Service, Description, etc ...
1
vote
2answers
67 views

Monitoring PSUs with local IPMI and Nagios

I'd like to use Nagios to monitor the redundant PSUs in my servers (running Debian Wheezy). I've run the sensors-detect script in the lm-sensors package, and the only thing it can find is Driver ...
-3
votes
2answers
161 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?
5
votes
5answers
25k views

How can I manually run a nagios check from the command line?

When defining and testing new services in nagios I have been restarting nagios, then clicking the service, and rescheduling a check for as soon as possible, then waiting until the check happens. Is ...
4
votes
2answers
548 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 ...
0
votes
1answer
81 views

Multiple monitoring machines for the same hosts

I'm fairly new to monitoring and am currently trying to setup a monitoring solution for our network infrastructure. Our hardware is pretty old and can therefore fail at any time. We have taken ...
0
votes
1answer
404 views

NSClient seems to be ignoring allow_nasty_meta_chars setting

I am trying to detect an eventlog entry on a server, so am trying to use the CheckEventLog command: ./check_nrpe -H hostname -c CheckEventLog -a MaxWarn=1 MaxCrit=1 "filter=generated gt -3d AND id=23 ...
1
vote
2answers
732 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 ...
0
votes
0answers
33 views

Nagios XI- Different Access Permissions to Different Users

I am having 22 Linux servers configured and being monitored in Nagios XI. I have created a user, apart from nagiosadmin (the admin user), to whom I have to give access to only 4 servers, so that he ...
3
votes
3answers
538 views

Nagios Hardening

I've been trying to look into hardening Nagios (if there is such a thing...), but haven't found anything too definitive on what to do or guidance on what to even look at. I'm wary to keep Nagios ...
3
votes
3answers
11k views

Nagios: Disable notifications from command line on Windows/Linux

Our routine maintenance requires services have to be brought down. The problem is these services have Nagios checks and we either have to go to the web interface and disable the check or get the ...
0
votes
1answer
275 views

check_mysql_query cannot connect to mysql, but works from the command line

I have Nagios 3 running on Debian Wheezy. I am able to run the query the following query from the command line. The credentials for the mysql db are stored in ~nagios/.my.cnf nagios@intranet:~$ ...
8
votes
2answers
262 views

Is it reasonable to use Nagios to check that a service is NOT available?

Suppose I have a server with a private interface and a public interface. Public might have things like HTTP(S) servers, private might have MySQL and SSH. Obviously Nagios is useful to check that the ...
0
votes
1answer
133 views

Use Nagios hostgroups in check_cluster --service check?

Is there a way to use hostgroups within a check_cluster --service check? I've only seen examples that list out each host in the cluster individually like this: define service{ ... ...
5
votes
1answer
225 views

Nagios escalations, prematurely critical escalation after warning

In Nagios 3, I would like a service to be escalated after being critical XX minutes. It works great on services that go from UP to CRITICAL. However, if the service has been warning >XX minutes (say ...
1
vote
1answer
772 views

Nagios CHECK_NRPE: Error receiving data from daemon. RHEL 6

So I'm trying to set up a Nagios check_load service on a Red Hat server. I followed the documentation from Red Hat to install the NRPE client: ...
2
votes
1answer
189 views

Redundant monitoring with Nagios

I am working with Nagios 4.0.7 on two servers to monitor my network. Recently I developed the third one in order to have more redundancy so I start reading information about failover redundancy mostly ...
0
votes
1answer
64 views

Nagios: Specify a contact group for a whole host group?

I'm migrating a config from a very old version of Nagios (1.5 something I think) to Nagios 3.5.1. The config I'm moving has contact groups specified for the host groups. The new Nagios says Error: ...
-1
votes
1answer
54 views

Monitoring root certificate

For enterprise wide systems wherein SSL certs are utilized, what is the best way of monitoring root CAs or intermediate CAs? If the systems were on Linux OS. Are there nagios checks that can catch ...
2
votes
1answer
158 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
155 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
2answers
1k 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
2answers
82 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
votes
1answer
220 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
225 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
196 views

Installing check_logfiles Nagios plugin [closed]

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 ...