Nagios is a service and resource monitoring system, built to help prevent and fix problems in enterprise infrastructure.

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17
votes
2answers
29k views

How do I install nagios?

I keep hearing about Nagios, a really powerful tool for monitoring servers. How do I install it?
7
votes
2answers
5k views

Which mailx package should I install for Nagios?

I'm following the Nagios Ubuntu quickstart instructions. I'm on Ubuntu 10.10 and installing Nagios 3.2.3. At the bottom of the docs it says I need to install the mailx and postfix packages. ...
6
votes
5answers
3k views

I need a good network monitoring tool

I need to get some good network monitoring tools. I am trying to find out why my office network is so congested/slow, and I need something that will allow me to look at all the machines in the ...
5
votes
3answers
982 views

Can nagios3 automatically generate a network map?

Have just installed nagios3 onto Ubuntu Server 10.04. A clean install. All plugins installed. The nagios status map only has localhost and gateway discovered. Is there a way for it to scan our ...
4
votes
2answers
10k views

nagios- nrpe installation error(configure: error: Cannot find ssl libraries)

i have installed nagios and i want to install nrpe. While installing NRPE, when i execute (/home/abc/nrpe/configure) ./configure it stops after reaching the following line ... checking for type ...
4
votes
1answer
2k views

How do I configure nagios with audio notifications?

I need help to configure Nagios to send an Audio notifications for every errors that nagios detects on the network. I've found on internet to realize that I need to install Festival but I don't know ...
3
votes
4answers
2k views

Why can't the nagios user send mails using “sendmail”?

I have installed nagios for monitoring and sendmail for sending mails. When testing from root account I am receiving mails, but I'm not receiving mails when I send it from nagios account. I have ...
3
votes
1answer
2k views

How can I have nagios alerts emailed to my gmail?

I'd like to set up some sort of mail server to send emails from from my gmail account to another email. How can I do this?
3
votes
2answers
64 views

Why is check_linux_raid missing from nagios plugins in 13.04?

After upgrading to 13.04 my Nagios monitoring started to notify me of a problem with my raid setup (mdadm raid). After some investigation it seems the check_linux_raid plugin is not included anymore ...
2
votes
1answer
482 views

Where are Nagios 3 Config Files in Ubuntu 12.04?

I just installed Nagios3 via Synaptic. The package and it's dependencies all installed fine and I log in using a web browser, however I'd like to add hosts now and according to the official Nagios ...
2
votes
2answers
226 views

Start nagios web interface on a different port

I am trying to install nagios but I would like to start the web interface on a port other than 80. I cant seem to find much info on how to do that. Any help is appreciated. Thanks
2
votes
1answer
389 views

Where Are My Config Files In Nagios?

I installed Nagios by following the steps here. I wonder where will be config file are. I can see plenty of places files resides. For example I can see nagios.cfg in two places : ...
2
votes
0answers
22 views

Nagios Notification via Ubuntu notify-osd

I have been looking around for a nagios plugin that offers the ability to have alerts for my hosts and services that i monitor to come through to my ubuntu pc in the form of an onscreen notification. ...
2
votes
2answers
799 views

nagios3 Error: Could not read object configuration data!

I have a brand new install of nagios3 on ubuntu 12.04. After I log in to the web interface and click any link I get the error: Error: Could not read object configuration data! Here are some things ...
2
votes
2answers
6k views

What's the best way to install the GD graphics library for Nagios?

While trying to install Nagios 3.2.3, I ran their ./configure script and got these errors: checking for main in -liconv... no checking for gdImagePng in -lgd (order 1)... no checking for gdImagePng ...
1
vote
2answers
2k views

Problem with nagios email notification

Recently I am not getting any email notification in nagios. I have tested it by sending emails manually from root user and nagios user and I have got the email successfully. But I am not any email ...
1
vote
1answer
208 views

How can I use aptitude to install Nagios?

I've seen several guides online which describe downloading and building Nagios on Ubuntu servers. Is there also an aptitude package I could use to install Nagios 3?
1
vote
1answer
5k views

How Do I install Nagios Plugin?

I have installed Nagios in my ec2 server. Now I want to install check_snmp plugin. I found that this is not available in : /usr/local/nagios/libexec I tried : sudo apt-get install ...
1
vote
1answer
2k views

How I can install RRD module in perl?

I'm very new to Ubuntu. I'm using Nagios Graph plugin. That plugin needs perl RRD module to be installed on my system. How I can install that? Thanks in advance.
1
vote
2answers
1k views

nagios on virtualhost cgi problems

I have been moving my nagios on apaches virtualhost and adding the following configuration file <VirtualHost *:80> ServerAdmin webmaster@localhost ServerName nagios.example.com ...
1
vote
0answers
97 views

running /usr/lib/nagios/plugins/check_apt as nagios user does not return the correct result

I have two servers, both running 12.04 server, and nagios-nrpe-server. On both, I have configured the command check_apt, which runs /usr/lib/nagios/plugins/check_apt. On both, nagios-nrpe-server is ...
1
vote
1answer
94 views

Aptitude installs automatically certain packages

I removed Nagios with sudo apt-get remove --purge nagios3-core nagios3-common and sudo apt-get autoremove but when I use Aptitude to install something else, It automatically installs Nagios again. ...
1
vote
0answers
183 views

Ubuntu 12.04 failed mysql installation

I have deployed Ubuntu 12.04 on the Amazon Cloud and I am trying to install Nagios and Nconf, while following this guide. When I install the prerequisites, I get this error on installing mysql: ...
1
vote
0answers
545 views

Step by Step Installation of Nagios [duplicate]

I'm a novice linux user and I'm looking for a step by step guide on how to install Nagios to monitor our network usage (bandwidth and all). I've tried installing it a couple of times, but it seems ...
1
vote
1answer
2k views

PNP4Nagios error with Apache

I had a working setup with PNP4Nagios and Nagios. Everything was great. Friday, I installed NagiosQL. Since then, PNP4Nagios's web UI doesn't work anymore! I get this error when trying to access ...
1
vote
0answers
266 views

install nagios3 package on 11.04 [closed]

I recently installed nagios3 using synaptic on 11.04 and am having a hard time locating updated docs. Last time I installed nagios I did it manually, but the updated quickstart doc doesn't account for ...
1
vote
2answers
450 views

Nagios3 crashes with SIGSEGV

I installed nagios3 on ubuntu server 10.04.1. It was working fine. Today, I found it stopped and when I tried to start it using sudo /etc/init.d/nagios3 start, it did not start. I found this in the ...
0
votes
1answer
209 views

Nagios suddenly stops working

I have configure passive checks on one my host system for this i am using nsca. it was running fine. suddenly host is showing down on the monitoring. but host was fine and running when i check ...
0
votes
1answer
21 views

Nagstamon doesn't show in Ubuntu 12.04?

I'm trying to do the nagstamon work on Ubuntu 12.04, but after setting my credentials only, the other setting I kept default, it doesn't show anywhere. I'm sure it's running 'cause of ps aux | grep ...
0
votes
0answers
11 views

How to stop nagios from adding -a at the end of nrpe_check commands

I have a problem running nrpe commands from nagios, I get an error like "no response returned". In nrpe.conf on the server I'm trying to monitor i have ...
0
votes
0answers
20 views

Update of nagios3 in repository

When I installed nagios3 through apt-get on my ubuntu precise64 I found out there is out-of-date version 3.2.3. The newest version is 3.5 right now. I also checked that for newer versions of ubuntu ...
0
votes
0answers
62 views

NDOUtils installation unable to load data into Mysql database

I have installed nagios server and its Working fine. later i thought of integrating the same with mysql Database via NDOUtils, But when i start the nod2db I m getting an error message in nagios ...
0
votes
0answers
192 views

check_megaraid_sas: Use of uninitialized value in numeric lt () at (eval 1) line 124

Suddenly on of my server showing this error on monitoring. ;Raid Status;-1;**ePN /usr/lib/nagios/plugins/check_megaraid_sas: Use of ininitialized value in numeric lt () at (eval 1) line 124,. and ...
0
votes
0answers
17 views

Nagios configuration on ubuntu [duplicate]

Possible Duplicate: How do I get permissions to edit system configuration files? I can't edit the file /usr/local/nagios/etc/objects/commands.cfg using "vi" editor this file is "readonly ...
0
votes
1answer
1k views

nagios check_ping: Invalid hostname/address

I'm trying to setup nagios for a host what has the following webroot: www.example.com/ui/html/, but nagios won't accept as host this kind of host path check_ping: Invalid hostname/address. Is there a ...
-1
votes
1answer
193 views

Debian Squeeze: Why does Nagios stop sending alerts to the server? [closed]

i have client machine and a server configured nagios on clinet to send alert on server to monitor everything is working fine but suddenly client stops sending alerts to the server on server side ...