Install NagVis Add-on For Icinga On Ubuntu

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NagVis is a visualization addon for the well known network managment system Nagios and Icinga. NagVis can be used to visualize Nagios Data, e.g. to display IT processes like a mail system or a network infrastructure.

We already have shown you how to install icinga on ubuntu in our previous articles. In this how-to let us learn how to install NagVis add-on that can be used to visualize Icinga data details.

Install NagVis On Ubuntu

I assume that you have already installed and configured Icinga and its working well.

First of all, switch to root user, so that we don’t have to put ‘sudo’ in-front of every command:

$ su

Install the following prerequisites:

# apt-get install g++ make libc6-dev php-net-socket php5-sqlite sqlite3 graphviz

Download NagVis

Download the latest version of NagVis here or just the following command to download:

# wget http://sourceforge.net/projects/nagvis/files/NagVis%201.7/nagvis-1.7.9.tar.gz

Extract NagVis tarball with command:

# tar zxvf nagvis-1.7.9.tar.gz

The above command will extract nagvis tarball in your current directory. Change to nagvis directory:

# cd nagvis-1.7.9

and install it with command:

# ./install.sh -p /usr/local/nagvis -b ido2db -u www-data -g www-data -w /etc/apache2/conf.d/ -a y -F

Sample Output:

+------------------------------------------------------------------------------+
| Welcome to NagVis Installer 1.7.9                                            |
+------------------------------------------------------------------------------+
| This script is built to facilitate the NagVis installation and update        |
| procedure for you. The installer has been tested on the following systems:   |
| - Debian, since Etch (4.0)                                                   |
| - Ubuntu, since Hardy (8.04)                                                 |
| - SuSE Linux Enterprise Server 10 and 11                                     |
|                                                                              |
| Similar distributions to the ones mentioned above should work as well.       |
| That (hopefully) includes RedHat, Fedora, CentOS, OpenSuSE                   |
|                                                                              |
| If you experience any problems using these or other distributions, please    |
| report that to the NagVis team.                                              |
+------------------------------------------------------------------------------+
| Do you want to proceed? [y]: <-------- Press Enter
+------------------------------------------------------------------------------+
| Starting installation of NagVis 1.7.9                                        |
+------------------------------------------------------------------------------+
| OS  : Ubuntu 12.10                                                           |
|                                                                              |
+--- Checking for tools -------------------------------------------------------+
| Using packet manager /usr/bin/dpkg                                     found |
|                                                                              |
+--- Checking paths -----------------------------------------------------------+
|                                                                              |
+--- Checking prerequisites ---------------------------------------------------+
|                                                                              |
+--- Checking for existing NagVis ---------------------------------------------+
|                                                                              |
+------------------------------------------------------------------------------+
| Summary                                                                      |
+------------------------------------------------------------------------------+
| NagVis home will be:           /usr/local/nagvis                             |
| Owner of NagVis files will be: www-data                                      |
| Group of NagVis files will be: www-data                                      |
| Path to Apache config dir is:  /etc/apache2/conf.d                           |
| Apache config will be created: yes                                           |
|                                                                              |
| Installation mode:             install                                       |
|                                                                              |
| Do you really want to continue? [y]: <------- Press Enter
+------------------------------------------------------------------------------+
| Starting installation                                                        |
+------------------------------------------------------------------------------+
| Creating directory /usr/local/nagvis...                                done  |
| Creating directory /usr/local/nagvis/var...                            done  |
| Creating directory /usr/local/nagvis/var/tmpl/cache...                 done  |
| Creating directory /usr/local/nagvis/var/tmpl/compile...               done  |
| Creating directory /usr/local/nagvis/share/var...                      done  |
| Copying files to /usr/local/nagvis...                                  done  |
| Creating directory /usr/local/nagvis/etc/profiles...                   done  |
| Creating main configuration file...                                    done  |
|   Adding webserver group to file_group...                              done  |
| Creating web configuration file...                                     done  |
| Setting permissions for web configuration file...                      done  |
|                                                                              |
|                                                                              |
|                                                                              |
+--- Setting permissions... ---------------------------------------------------+
| /usr/local/nagvis/etc/nagvis.ini.php-sample                            done  |
| /usr/local/nagvis/etc                                                  done  |
| /usr/local/nagvis/etc/maps                                             done  |
| /usr/local/nagvis/etc/maps/*                                           done  |
| /usr/local/nagvis/etc/geomap                                           done  |
| /usr/local/nagvis/etc/geomap/*                                         done  |
| /usr/local/nagvis/etc/profiles                                         done  |
| /usr/local/nagvis/share/userfiles/images/maps                          done  |
| /usr/local/nagvis/share/userfiles/images/maps/*                        done  |
| /usr/local/nagvis/share/userfiles/images/shapes                        done  |
| /usr/local/nagvis/share/userfiles/images/shapes/*                      done  |
| /usr/local/nagvis/var                                                  done  |
| /usr/local/nagvis/var/*                                                done  |
| /usr/local/nagvis/var/tmpl                                             done  |
| /usr/local/nagvis/var/tmpl/cache                                       done  |
| /usr/local/nagvis/var/tmpl/compile                                     done  |
| /usr/local/nagvis/share/var                                            done  |
|                                                                              |
+------------------------------------------------------------------------------+
| Installation complete                                                        |
|                                                                              |
| You can safely remove this source directory.                                 |
|                                                                              |
| For later update/upgrade you may use this command to have a faster update:   |
| ./install.sh
|                                                                              |
| What to do next?                                                             |
| - Read the documentation                                                     |
| - Maybe you want to edit the main configuration file?                        |
|   Its location is: /usr/local/nagvis/etc/nagvis.ini.php                      |
| - Configure NagVis via browser                                               |
|   <http://localhost/nagvis/config.php>                                       |
| - Initial admin credentials:                                                 |
|     Username: admin                                                          |
|     Password: admin                                                          |
+------------------------------------------------------------------------------+

NagVis has been installed now. Note down the default admin crdentials of NagVis.

Configure NagVis With IDOUtils

Open the file /usr/local/nagvis/etc/nagvis.ini.php:

# nano /usr/local/nagvis/etc/nagvis.ini.php

Scroll down to ‘Path definitions’ section and uncomment the lines as shown below.

; Path definitions
[paths]
; absolute physical NagVis path
base="/usr/local/nagvis/"
; absolute html NagVis path
htmlbase="/nagvis"
; absolute html NagVis cgi path
htmlcgi="/nagios/cgi-bin"

Scroll down further, you may find the section called ‘Backend definitions’. Comment out the mklivestatus line.

; ----------------------------
; Backend definitions
; ----------------------------

; Example definition of a livestatus backend.
; In this case the backend_id is live_1
; The path /usr/local/nagios/var/rw has to exist
[backend_live_1]
;backendtype="mklivestatus"

Finally set the backend to use Icinga IDOUtils in the configuration file.

[backend_ndomy_1]
; type of backend - MUST be set
backendtype="ndomy"
## Add the following lines ##
dbname="icinga"
dbuser="icinga"
dbpass="icinga"
dbprefix="icinga_"

Save and close the file. Restart apache service to take effect the saved changes.

# /etc/init.d/apache2 restart

Access NagVis Web Interface

Navigate to http://icinga-ip-address/nagvis from your browser. Enter the username and password for NagVis. The NagVis default username and password are both ‘admin’.

NagVis 1.7.9 › Log In - Mozilla Firefox_001Demo System Overview Screenshots

Demo: 2 Overview System Load (OK) :: NagVis 1.7.9 - Mozilla Firefox_002Demo: 0 Overview Germany (DOWN) :: NagVis 1.7.9 - Mozilla Firefox_003For more information about NagVis installation and configuration, i recommend you to read NagVis Documentation Page.

For questions please refer to our Q/A forum at : http://ask.unixmen.com/


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