NagVis is Awesome: Top 4 Reasons You Should Use It

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Nagios XI is a powerful monitoring solution that provides comprehensive visibility into your IT infrastructure. One valuable but often overlooked built-in component is NagVis, an awesome open-source visualization tool. NagVis is designed to provide you with highly customizable visibility into your status data. By integrating NagVis into your workflow, you can gain deeper insights, improve efficiency, and create custom visualizations tailored to your organization’s needs.
Let’s explore the top 4 reasons you should use NagVis!
1. Seamless Integration with Nagios XI
NagVis is fully integrated into Nagios XI, meaning you don’t need to install or configure additional third-party tools to benefit from its features. To begin using NagVis, simply navigate to Home > Maps > NagVis:

The complete guide for using NagVis in Nagios XI can be found here.
2. Real-Time, Intuitive Network Visualization
NagVis transforms raw monitoring data into interactive visual representations, making it easier to understand the state of your network at a glance. Whether you’re managing servers, applications, or entire data centers, you can create custom maps that:
- Display live status updates for hosts and services
- Highlight problems with color-coded icons
- Show dependencies between network components with color-coded lines
By replacing text-heavy reports with visual maps, you can quickly diagnose issues and make informed decisions.
3. Customizable Displays for Better Monitoring
With NagVis, you can design personalized displays that suit your specific monitoring requirements. These dashboards allow you to:
- Combine multiple Nagios XI data sources into a single view
- Use background images like network topology diagrams, floor plans, global maps, and pictures of equipment
- Display performance data, statistics, and status information
- You can also put your displays on an automatic rotation
This high level of customizability ensures that your monitoring environment is tailored to your organization’s unique needs, reducing noise and focusing on what truly matters.
4. Enhanced Troubleshooting and Incident Response
NagVis plays a critical role in faster troubleshooting by providing visual alerts over custom-chosen and context-driven backgrounds. Features that improve incident response include:
- Automatic Status Updates: See real-time changes without refreshing
- Drill-Down Functionality: Click on problem areas for more details
- Dependency Views: Understand how issues in one system affect others
- Audio alerts: NagVis can even play a sound when warning or critical states occur.
By pinpointing root causes faster, IT teams can reduce downtime and improve overall system reliability.
Tips for Using NagVis
Here are a couple of helpful tips when using NagVis:
Creating New Maps and Adding Custom Background Images
This can be done in the Options menu:

Changing Your Map Background
To load your custom image as a map background, navigate to the Edit Map > Map Options > Appearance tab, then choose your map from the map_image dropdown:

How to Add Icons
Once your map is created, you can add icons to it via the Edit Map menu. In the process, choose the type and size of the icon to use, as well as the host, service, or other objects to tie the icon’s status:

My New Icon is Stuck Where I Dropped It!
After initial placement, your icon will be locked. Right-click the icon to unlock it so it can be moved and to see the variety of icon settings you can edit as needed.
Conclusion
NagVis is a powerful visualization tool that enhances Nagios XI by providing real-time status maps, custom dashboards, improved troubleshooting, and seamless integration out-of-the-box. If you’re managing complex IT environments, using NagVis can help you streamline operations, reduce downtime, and make better data-driven decisions.
Are you ready to take your network monitoring to the next level? Start using NagVis in Nagios XI today!
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