Nagios Core vs Tenable SecurityCenter Continuous View [EOL] comparison

Nagios and Tenable are both solutions in the Network Monitoring Software category. Additionally, 80% of Nagios users are willing to recommend the solution, compared to 100% of Tenable users who would recommend it.

Nagios Core

Read 51 Nagios Core reviews

8,414 Views
6,815 Comparison Views

80% willing to recommend

Tenable SecurityCenter Cont...

Read 4 Tenable SecurityCenter Continuous View [EOL] reviews

100% willing to recommend

Nagios Core

Tenable SecurityCenter Cont...

Comparison Buyer's Guide

Download the report

Executive Summary

We performed a comparison between Nagios Core and Tenable SecurityCenter Continuous View [EOL] based on real PeerSpot user reviews.

Find out what your peers are saying about Zabbix, SolarWinds, Datadog and others in Network Monitoring Software.

To learn more, read our detailed Network Monitoring Software Report (Updated: August 2026).

Buyer's Guide

Network Monitoring Software

August 2026

Download the complete report

Helped 909,948 peers since 2012

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:

Categories and Ranking

Nagios Core

Average Rating

8.2

Reviews Sentiment

7.3

Number of Reviews

Ranking in other categories

Network Monitoring Software (19th), IT Infrastructure Monitoring (16th)

Tenable SecurityCenter Cont...

Average Rating

8.4

Number of Reviews

Ranking in other categories

No ranking in other categories

Featured Reviews

Husham Yaqoob

Senior System Administrator at Interactive Group

Monitoring solution provides comprehensive visibility across IT infrastructure

The good thing about Nagios Core is it covers everything. Everything in the IT domain, you can monitor anything. You can even monitor printers, the ports of printers, Core workstations, and storage. You can monitor the workflow Core and the utilization of computes. If you want to grasp everything of your IT equipment on a single interface, you can use Nagios. It's the best one. It provides dashboards, and you can also configure your emails and alerts with it. If something is critical, you can configure it to notify via emails. It has a very handy dashboard, providing live alerts and visibility for everything.

Read full review

SATYAVRAT MISHRA

AVP - Corporate IT at Godrej

A stable security solution with a useful visibility feature

We use it to scan all of our servers and network devices on a monthly basis. Then based on the outcome, we do the patching depending on high availability, and so on Through porting, we can see how the improvement is happening over a period of time. We can see the overall scenario from the last…

Read full review

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:

Pros

"Nagios is able to minimize server downtime and this in turn helps to generate more revenue."

"Nagios Core is stable."

"The good thing about Nagios Core is it covers everything."

"Reliability Security Flexibility Functionality Availability - controllability anywhere and with different methods"

"We are using Nagios Core on a VM and it's working very well, even though the specs of the VM are very low because it doesn't require much storage."

"The solution is quite efficient."

"Provides timely notifications."

"The most valuable feature depends on the project. It's great if you need to check to ensure a service is running 24/7. I can use the full solution for free, and it's flexible. If I need to add a dashboard, I can integrate it with Nagios. Cloud synchronization is wonderful."

More Nagios Core pros

"The scanning itself is really the core of the tool, and it's what we're most interested in."

"The first of the valuable features is how easy it is to access all of the information that's gathered from the assessments... With a lot of other technologies, like Rapid7, if you're using Nexpose you effectively have to be a DBA to get some of the lower-level results from the scans. And Qualys wasn't very intuitive."

"Tenable is already in the top three risk management solutions and Tenable is already a leader of vulnerability risk management."

"Through porting, we can see how the improvement is happening over a period of time. We can see the overall scenario from the last year, where were we were and where we currently stand."

"We can manage everything with only a single console on the Tenable SecurityCenter. We can pull and define the policy. We can perform every task on the Tenable SecurityCenter."

"The next big one is supportability. In a large enterprise, we have many types of technologies. The technology we previously had didn't even support authentication to a lot of those technologies."

"SecurityCenter enables us to find all the vulnerabilities, export that data, prioritize it, and address the highest-risk vulnerabilities."

"The level of visibility Tenable provides us, compared to our previous solutions is night and day."

Cons

"I like to have the option to configure Nagios using the web interface."

"Nagios Core would benefit from aggregations if a particular server goes down."

"t was a little hard to get our setup represented in the configuration."

"This is the open source product, so it's a toolkit rather than a complete solution."

"There is room for improvement in the graphics."

"Lessening the price point would be an improvement."

"We're using the free version, which limits us in terms of the things that we can do."

"I would like to see a sensor that shows the traffic of a user and what they're doing on the network."

More Nagios Core cons

"There are certain circumstances where they may have found a vulnerable service and they just removed the service completely from the device because nobody was using it. There's no way to go into SecurityCenter and mark it, to say, "This is no longer an issue. It doesn't exist anymore." Or, "The risk was accepted for one year, so let's not report it as 'high' until that one year period is done." The handling of operational flow around vulnerability management could be improved."

"When it comes to... dynamic application scanning, I think they are lagging behind the curve. They have a lackluster solution, to the point where I think they need to determine, as a company, whether or not that's a space they even want to play in."

"In terms of what could be improved, some customers have a problem with SecurityCenter's ticket system. If I want them to assign one of the issues, they may want to assign someone to it or to assign it somewhere else and I may want to break up the ticket."

"For dynamic application scanning, it's a two out of ten."

"One area which is missing is cloud security because there are a lot of configurations. Rapid7 has a product called a DV cloud. I would like to have a similar kind of solution and feature."

Pricing and Cost Advice

"The enterprise version has technical support. The version we are using is free."

"It's free."

"We are using the free version of Nagios Core."

"The solution is expensive."

"Nagios Core is a cheap solution."

"I would rate the solution's pricing an eight out of ten."

"The product is cheaply priced."

"It's free."

More Nagios Core pricing and cost advice

"Pricing-wise, it's fine. It's not an expensive product. That's not an issue."

"We did a three-year deal where the cost is amortized over the three years. The Elite Support was an additional cost to the standard licensing fees... If you use Security Center, most of the time it is on-premise, so you're going to have some sort of infrastructure to build out and there's going to be a cost associated with that."

See which vendors are best for you

Use our free recommendation engine to learn which Network Monitoring Software solutions are best for your needs.

See recommendations

909,948 professionals have used our research since 2012.

Top Industries

By visitors reading reviews

Comms Service Provider

10%

Manufacturing Company

Financial Services Firm

Construction Company

No data available

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	20
Midsize Enterprise	11
Large Enterprise	24

No data available

Questions from the Community

What is your experience regarding pricing and costs for Nagios Core?

Nagios Core is a free and open-source product. We don't charge for the product itself, but we charge for the man-hour costs related to installation, configuration, ongoing operation, and maintenance.

See all answers

What needs improvement with Nagios Core?

The dashboard should be improved. It's very simple. I don't have a very clear or specific suggestion. You can change the skin of the dashboard, however, it's good for me.

See all answers

What is your primary use case for Nagios Core?

I was a senior system administrator. I've been using Nagios Core for more than ten years now. It can be used to monitor hosts, such as machines, and monitor services of any kind. I'm using it to mo...

See all answers

Ask a question

Earn 20 points

Comparisons

LibreNMS vs Nagios Core

Compared 6% of the time

Zabbix vs Nagios Core

Compared 5% of the time

Centreon vs Nagios Core

Compared 4% of the time

OpenNMS vs Nagios Core

Compared 4% of the time

Nagios XI vs Nagios Core

Compared 4% of the time

More Nagios Core Competitors

ThousandEyes vs Tenable SecurityCenter Continuous View [EOL]

Compared 100% of the time

More Tenable SecurityCenter Continuous View [EOL] Competitors

Product Reports

Buyer's Guide

Nagios Core

August 2026

Download Nagios Core product report

Buyer's Guide

Tenable SecurityCenter Continuous View [EOL]

July 2026

Tenable SecurityCenter Continuous View [EOL] report

Download Tenable SecurityCenter Continuous View [EOL] product report

Also Known As

No data available

SecurityCenter Continuous View, SecurityCenter CV

Overview

Nagios Core offers a versatile monitoring solution that efficiently manages notifications, reporting, and resource usage. Its open-source architecture provides flexibility and customization options for comprehensive infrastructure health management.

Nagios Core, known for its extensible plugin architecture, proactively enhances infrastructure management with customizable notifications and reliable reporting. Seamlessly integrating various plugins, it offers real-time dashboards and efficient alerting systems for thorough monitoring. Its adaptability and ease of configuration make it popular among users seeking flexible monitoring solutions. However, improvements in the web interface, scalability, performance, and visualization are needed to enhance accessibility. Users seek better alert mechanisms, more robust PDF export features, and simpler setup processes for increased efficiency.

What are the key features of Nagios Core?

Customizable Notifications: Tailor alerts to suit specific needs.
Reliable Reporting: Provides detailed insights into system performance.
Light Resource Usage: Operates efficiently with minimal resource demands.
Extensible Plugin Architecture: Supports a wide range of third-party integrations.
Real-Time Dashboards: Offers instant insights into system health.

What benefits should users expect from Nagios Core?

Flexibility: Allows detailed customization for unique monitoring requirements.
Open-Source Nature: Encourages community-driven enhancements and support.
Integration Capabilities: Facilitates seamless interaction with other tools and platforms.
Adaptability: Supports monitoring across different environments seamlessly.

In many industries, Nagios Core is integral to monitoring infrastructure and services, including cloud servers, applications, and network devices. Users rely on it for issue detection, capacity planning, and maintaining system stability in environments like AWS and on-premise servers. Its capabilities in CPU, memory, and bandwidth monitoring along with alert systems support sectors needing real-time oversight of critical equipment.

Nagios

SecurityCenter Continuous View is the market-leading continuous network monitoring platform. It integrates SecurityCenter along with multiple Nessus Network Monitor sensors and Log Correlation Engine (LCE) to provide comprehensive continuous network monitoring.

Tenable

Sample Customers

Airbnb, Cisco, PayPal, FanDuel

Methodist Healthcare Ministries

Buyer's Guide

Network Monitoring Software

August 2026

Download Free Report

Find out what your peers are saying about Zabbix, SolarWinds, Datadog and others in Network Monitoring Software. Updated: August 2026.

DOWNLOAD NOW

909,948 professionals have used our research since 2012.

See our list of best Network Monitoring Software vendors.

We monitor all Network Monitoring Software reviews to prevent fraudulent reviews and keep review quality high. We do not post reviews by company employees or direct competitors. We validate each review for authenticity via cross-reference with LinkedIn, and personal follow-up with the reviewer when necessary.