NagVis Installation CentOS 8 Step by Step Guide | ArkIT

NagVis is a visualization tool. You can create great visualized maps using nagvis software, along with Nagios monitoring tool or icigna you can use it. NagVis Installation CentOS 8 step by step guide for you in this article.

  • Display of single Hosts and Services
  • Visualize a complete Host- or Service-group with one icon
  • Display the summary state of a Host and all its services
  • Display only the real problems
  • Sub-map icons which represent a complete NagVis Map in one icon (drill down)
  • Visualization of complete IT processes using self drawn graphics
  • Online documentation of IT environments including current states
  • Visualization of network traffic using weather-map lines
  • Multilingual capabilities
  • Web based configuration of your maps

Install dependent packages

# yum install php php-pdo php-pdo_mysql php-fpm php-json rsync gcc g++ php-mbstring php-mysqlnd php-gd php-xml

By default CentOS will help CentOS repositories, however if you want more packages install EPEL rpm for EPEL repository. after installing dependency packages, now download NagVis tar package from site.

# wget
# tar -xvf nagvis-1.9.18.tar.gz
# cd nagvis-1.9.18
# ./

It will ask for confirmation before continue

Start NagVis Installation

NagVis Installer

NagVis Installer

confirm by typing ‘y’ or Hit Enter key

Nagvis Installation location

Nagvis Installation location

Provide Nagios installed path and also NagVis installation path

Verify dependencies

Verify dependencies

Please enter the web path to NagVis [/nagvis]:
Please enter the name of the web-server user [apache]: 
Please enter the name of the web-server group [apache] 
create Apache config file [y]:

Provide appropriate details and say yes hit enter

NagVis home will be : /usr/local/nagvis
Owner of NagVis files will be: apache
Group of NagVis files will be: apache
Path to Apache config dir is : /etc/httpd/conf.d
Apache config will be created: yes
Installation mode: install
Do you really want to continue? [y]: y

Installation completed.

Username: admin
Password: admin

Now restart Web server services and Nagios service to take effect

# systemctl restart httpd
# systemctl restart nagios

Access the NagVis http://IP-ADDRESS/nagvis

nagvis login screen

nagvis login screen

first page

first page

That’s it. Successfully installed NagVis Visualization software. To configure maps you need to install either ndoutilities, mklivestatus, pgsql or other status data

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Ravi Kumar Ankam

My Name is ARK. Expert in grasping any new technology, Interested in Sharing the knowledge. Learn more & Earn More

2 Responses

  1. blank Gildasio Sousa says:

    I did installation by ./ but I can’t access nagvis to Redhat 8.
    But present 403 error
    You don’t have permission to access this resource.
    Error log httpd:
    [Wed Jan 19 14:07:10.085106 2022] [authz_core:error] [pid 1176149:tid 140031888971520] [client] AH01630: client denied by server configuration: /nagvis/nagvis/share/frontend/nagvis-js/index.php
    My httpd conf looks like this:

    Alias /nagvis/ “/nagvis/nagvis/share/”

    Options FollowSymLinks
    AllowOverride none
    #Order allow,deny
    #Allow from all
    Require all granted

    # Apache >= 2.4
    Require all granted

    # Apache < 2.4
    Order allow,deny
    Allow from all

    # To enable Nagios basic auth on NagVis use the following options
    # Just uncomment it. Maybe you need to adjust the path to the
    # Auth user file.
    # If you use the NagVis internal auth mechanism based on the web
    # for you won’t need this.
    #AuthName “NagVis Access”
    #AuthType Basic
    #AuthUserFile /nagios/etc/htpasswd.users
    #Require valid-user

    # With installed and enabled mod_rewrite there are several redirections
    # available to fix deprecated and/or wrong urls. None of those rules is
    # mandatory to get NagVis working.

    RewriteEngine On
    RewriteBase /nagvis/nagvis

    # Use mod_rewrite for old url redirection even if there are php files which
    # redirect the queries itselfs. In some cases the mod_rewrite redirect
    # is better than the php redirect.
    # Using the php redirect seems to be better in some cases where https/http servers
    # are mixed. For example in OMD setups where using apache own mode and https in the
    # frontend and http in the backend apache servers.
    # Disabling this redirect by default in the hope that the php direct works better.
    #RewriteCond %{REQUEST_URI} ^/nagvis/nagvis(/config\.php|/index\.php|/|)(\?.*|)$
    #RewriteRule ^(.*)$ /nagvis/nagvis/frontend/nagvis-js/%1%2 [R=301,L]

    # Redirect old regular map links
    RewriteCond %{REQUEST_URI} ^/nagvis/nagvis/frontend/(wui|nagvis-js)
    RewriteCond %{QUERY_STRING} map=(.*)
    RewriteRule ^(.*)$ /nagvis/nagvis/frontend/nagvis-js/index.php?mod=Map&act=view&show=%1 [R=301,L]

    # Without map= param
    RewriteCond %{REQUEST_URI} ^/nagvis/nagvis/frontend(/wui)?/?(index.php)?$
    RewriteRule ^(.*)$ /nagvis/nagvis/frontend/nagvis-js/index.php [R=301,L]
    # Redirect old rotation calls
    RewriteCond %{REQUEST_URI} ^/nagvis/nagvis/frontend/nagvis-js
    RewriteCond %{QUERY_STRING} !mod
    RewriteCond %{QUERY_STRING} rotation=(.*)
    RewriteRule ^(.*)$ /nagvis/nagvis/frontend/nagvis-js/index.php?mod=Rotation&act=view&show=%1 [R=301,L]

  2. I did installation by ./ but I can’t access nagvis to Redhat 8.
    But present 500 error httpd server.

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