Whoa! Check Out Nagios Network Analyzer 2026
For the past 12 years, Nagios Network Analyzer (NNA) has provided ample value by granting insight into the context of your network traffic via flow data (Netflow, sFlow, jFlow, IPFIX) collection, analysis, and alerting. Although there have been regular updates and fixes over the years, nothing dramatic has changed…until now!
Network Analyzer 2026 is a whole new world of network visibility and security, combining traditional flow data capabilities with easy onboarding and baked-in integration interfaces for three best-in-class open-source network security tools. And to ice the cake, all of this now lives in a crisp, modern UI. Let’s dig in!
User Interface Re-Imagined
Before we explore the new integrations, let’s take a look at the new NNA interface. Coded from scratch by the Nagios development team, the updated UI provides a completely overhauled and optimized user experience and is available in both dark and light theme options.
New Dashboards and Reports
Nagios Network Analyzer now includes customizable per-user dashboards so that each user can quickly view the data that is most important to them. If you’re familiar with Nagios Log Server 2026 or with Nagios XI’s new Smart Dashboards, you’ll be right at home as you resize and arrange your custom panels to meet your needs.
And, once you’ve fine-tuned a dashboard, you can download it on-demand or schedule it for automatic email delivery as a PDF or JPG report.
New Home Page
The updated Home page provides an at-a-glance view of flow source traffic and data from integrated tools, including total Nmap scans over the last week, Suricata alerts, and Wireshark captures.
All the Integrations
Nagios Network Analyzer 2026 includes robust integration with the powerful network security tools Suricata, Wireshark, and Nmap. Initial setup instructions are included right in the user interface; simply copy the listed commands, paste the batch into the terminal of your NNA server, and hit Enter to load them up. Once they’re installed, built-in user interfaces enable you to leverage the capabilities of the tools to do things like running live interface and network composition scans, inspecting packets, alerting on Suricata Signature IDs (SIDs), and much more.
Suricata
The Suricata integration provides easy access to many great capabilities, such as
- Running live interface scans on-demand to look for issues.
- Managing Suricata Rulesets and individual Rules (26 open-source and commercial Rulesets pre-loaded).
- Viewing Alerts based on your Rules and alerting on Suricata SIDs.
- Run Whois, Reverse DNS, and Nmap scans of source and destination IPs in Suricata events.
This article is a great resource if you want to learn more about Suricata itself:
This document will help you learn how to use Suricata in NNA:
Wireshark
The Wireshark interface enables many useful capabilities, including:
- Running live captures on demand.
- Individual packet inspection in summary, detailed, and raw JSON views.
- Sending PCAP files generated by scans to Suricata for further analysis.
This deep dive article is a great way to learn more about the Wireshark project:
This document will teach you how to use Wireshark with NNA:
Nmap
The robust Nmap integration provides many useful functions:
- Run live on-demand Nmap scans of your network.
- Schedule recurring scans.
- Compare previously run scans with Ndiffs.
- Use the build-in scan Profiles for quick access to common settings and create your own.
- Alerting on the number of open/closed ports found in scheduled scans.
- Search Suricata for results found in scans.
If you want to dig into Nmap, this article is a great starting point:
You can learn how to use Nmap with NNA here:
Roles
With great power comes great responsibility, and since Nagios Network Analyzer 2026 has the potential to unlock so many powerful capabilities on your network, we’ve added a new Roles feature that gives you granular control over what your users can see and do.
Flow Source, Wireshark, Nmap, and Suricata feature access can be fine-tuned to fit any type of user, and these settings can be saved as Roles that can be quickly applied to new and existing users as needed.
Migration Options
Although a direct upgrade is not possible, we’ve developed and documented a straightforward migration path to go from Nagios Network Analyzer 2024 to 2026, including a special tool for migrating historical flow data that you chose to store in custom data directories:
Resources
The free trial version is a great way to explore the power of Nagios Network Analyzer 2026:
Network Analyzer Free Trial Download
The Admin Guide is an excellent resource to help you locate the documentation you need to get things going:
This webinar is a great way to see Network Analyzer 2026 in action:
Webinar: What’s New in Network Analyzer 2026
If you have any questions, please feel free to reach out to [email protected] so we can assist you further.
