Nagios Core vs Zenoss Cloud comparison

Nagios and Zenoss are both solutions in the Network Monitoring Software category. Nagios is ranked #11 with an average rating of 8.7, while Zenoss is ranked #70. Nagios holds a 1.6% mindshare in NMS, compared to Zenoss’s 0.8% mindshare. Additionally, 80% of Nagios users are willing to recommend the solution, compared to 100% of Zenoss users who would recommend it.

Nagios Core

Read 51 Nagios Core reviews

7,235 Views
5,933 Comparison Views

80% willing to recommend

Zenoss Cloud

Read 8 Zenoss Cloud reviews

4,409 Views
2,160 Comparison Views

100% willing to recommend

Nagios Core

Zenoss Cloud

Comparison Buyer's Guide

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Executive SummaryUpdated on Oct 9, 2024

Zenoss Cloud and Nagios Core are competitors in the IT infrastructure monitoring market, each catering to different needs. Zenoss Cloud has the upper hand with its advanced features, making it more appealing for businesses looking for a comprehensive, cloud-based solution.

Features: Zenoss Cloud offers advanced real-time analytics, dynamic network visualization, and predictive insights. Nagios Core is valued for its extensive plugin ecosystem, customizable alerting capabilities, and open-source adaptability.

Room for Improvement: Zenoss Cloud could improve by offering more flexible pricing options, enhancing integration with third-party tools, and simplifying its feature set to reduce complexity. Nagios Core could benefit from improving its user interface, offering dedicated customer support, and streamlining its installation process.

Ease of Deployment and Customer Service: Zenoss Cloud provides a streamlined cloud-based deployment model, reducing setup time and includes dedicated customer support. Nagios Core requires manual installation and configuration but benefits from strong community support for customization.

Pricing and ROI: Zenoss Cloud's initial setup cost may be higher due to its comprehensive features but can offer better ROI through predictive analytics and reduced downtime. Nagios Core's open-source nature ensures minimal setup costs, with increased ROI as organizations leverage community resources and custom plugins.

To learn more, read our detailed Nagios Core vs. Zenoss Cloud Report (Updated: April 2026).

Buyer's Guide

Nagios Core vs. Zenoss Cloud

April 2026

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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

Ranking in Network Monitoring Software

11th

Ranking in IT Infrastructure Monitoring

10th

Average Rating

8.2

Reviews Sentiment

7.3

Number of Reviews

Ranking in other categories

No ranking in other categories

Zenoss Cloud

Ranking in Network Monitoring Software

70th

Ranking in IT Infrastructure Monitoring

54th

Average Rating

8.4

Reviews Sentiment

7.1

Number of Reviews

Ranking in other categories

Application Infrastructure (21st), Event Monitoring (13th), Server Monitoring (26th), Container Monitoring (8th), Cloud Monitoring Software (42nd), AIOps (26th)

Mindshare comparison

As of May 2026, in the Network Monitoring Software category, the mindshare of Nagios Core is 1.6%, down from 3.0% compared to the previous year. The mindshare of Zenoss Cloud is 0.8%, up from 0.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Network Monitoring Software Mindshare Distribution
Product	Mindshare (%)
Nagios Core	1.6%
Zenoss Cloud	0.8%
Other	97.6%

Network Monitoring Software

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

ClaudiaChen

Cloud Architect - Senior Technology Architect at Telstra

Generates close to real-time alerts so users can resolve issues, but needs more integration and public cloud monitoring features

As Zenoss Service Dynamics is more for network-centric devices and you want to monitor, for example, a server, its services, IP addresses, and interfaces, if it's a network and you're going to monitor multiple items, you'll be charged multiple times. This is what Zenoss Service Dynamics needs to improve to make sure that customers pay just one fee to monitor the entire server. What I'd like to see in Zenoss Service Dynamics in the future is a public cloud monitoring feature, particularly for the Azure public cloud. Another additional feature I'd like to see in the next release of the solution is integration with the Azure public cloud because I know that there are some services from Azure that Zenoss Service Dynamics is currently unable to monitor.

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

"Before we implemented Nagios, we did not know which servers were up or down until a customer told us, and now I can see trends over time and it gives me perspective of what needs to be improved so we are able to work proactively as opposed to reactively."

"It is fairly easy to set up, and we can monitor pretty much everything we want to."

"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."

"Nagios Core integrates with tools like Splunk, Datadog, or Dynatrace. It is usually used as a feed to provide more technical information about devices or hosts to another system."

"Our customers like that Nagios Core is an open source solution. It can be customized to our customers' specific needs."

"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 notifications are definitely one of the most valuable features of Nagios Core. We know what to look for and what to expect when things are down."

"The poller is really good, I can easily implement new stuff and it is scalable."

More Nagios Core pros

"It is the most flexible solution of this type, but it takes time to adapt."

"Its Docker Container concept is mind blowing."

"Its Docker Container concept is mind blowing. It is the first monitoring tool which comes with Docker features."

"The custom built integration is one of the most valuable features because you can see all the especially critical items."

"What I like most about Zenoss Service Dynamics is that it monitors the devices and gives close to real-time alerts. For example, in case the device is not available, Zenoss Service Dynamics generates an alert so my team can resolve the issue."

"The custom built integration is one of the most valuable features because you can see all the especially critical items."

"With this solution, they can have one million users at the same time with no crashes."

"It's easy to use."

More Zenoss Cloud pros

Cons

"A better UI for graphing would make it better. The present graphs are not very friendly and good to see."

"Generally, it does what I need it to do, but better error reporting would be great."

"Nagios Core could improve by adding a user interface. If you want the user interface you have to use Nagios XI."

"The mapping is a little hard."

"Setup is bit complicated due to the large set of libraries it needs, but this may be because it's open source."

"The dashboard and monitoring features could be improved."

"This solution is not scalable at all. If you want to add an AI, or if you wanted to monitor different types of metrics, you won't get the most out of it."

More Nagios Core cons

"It would be ideal if the product offered sound alerts."

"As Zenoss Service Dynamics is more for network-centric devices and you want to monitor, for example, a server, its services, IP addresses, and interfaces, if it's a network and you're going to monitor multiple items, you'll be charged multiple times. This is what Zenoss Service Dynamics needs to improve to make sure that customers pay just one fee to monitor the entire server. What I'd like to see in Zenoss Service Dynamics in the future is a public cloud monitoring feature, particularly for the Azure public cloud. Another additional feature I'd like to see in the next release of the solution is integration with the Azure public cloud because I know that there are some services from Azure that Zenoss Service Dynamics is currently unable to monitor."

"It would be ideal if the product offered sound alerts."

"Now it is stable, but they should design threshold parameters in percentage instead of raw values."

"There is room for improvement with the administrative part. The administrative part, since they introduced Docker, etc., has become a little complex."

"This solution is complex for beginners so it takes some time to learn."

More Zenoss Cloud cons

Pricing and Cost Advice

"We have saved a lot of time, money, and effort in reducing disaster times, which is owed to Nagios quick alerting."

"We are using the free version."

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

"Nagios Core is free to use."

"Most the plugin features are free."

"It's free."

"We are using the open-source, unpaid version."

"Nagios Core is a cheap solution."

More Nagios Core pricing and cost advice

"The pricing depends on the environment, the number of services, and the size of the data center. It can go from $100,000 to a million dollars."

"There are additional costs you'll have to pay apart from the license fee for Zenoss Service Dynamics. I can't remember exactly how much my company is paying because I don't handle the finance part, but the cost is paid annually. On a scale of one to five, with one being the cheapest and five being the most expensive, I'm rating the solution three out of five."

"It is very cost-effective compared to the tools I worked with in the past. The company is gaining a lot with respect to the cost factor. It provides agentless monitoring and in a very cheap way."

"It depends on the customer, what he wants."

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Top Industries

By visitors reading reviews

Manufacturing Company

10%

Comms Service Provider

10%

Computer Software Company

Financial Services Firm

Comms Service Provider

Construction Company

Manufacturing Company

Transportation Company

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	20
Midsize Enterprise	11
Large Enterprise	23

By reviewers
Company Size	Count
Small Business	4
Large Enterprise	5

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

What is the best network monitoring software for large enterprises?

In my experience, I worked with many monitoring software, but the one that gave me the most functionalities of a large-scale company is Zenoss, due to its ability to monitor completely hybrid and a...

See all answers

Comparisons

LibreNMS vs Nagios Core

Compared 7% of the time

Zabbix vs Nagios Core

Compared 5% of the time

Icinga vs Nagios Core

Compared 5% of the time

Centreon vs Nagios Core

Compared 5% of the time

OpenNMS vs Nagios Core

Compared 4% of the time

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Zabbix vs Zenoss Cloud

Compared 6% of the time

Nagios XI vs Zenoss Cloud

Compared 4% of the time

Microsoft System Center vs Zenoss Cloud

Compared 3% of the time

Dynatrace vs Zenoss Cloud

Compared 3% of the time

IBM Tivoli Business Service Manager vs Zenoss Cloud

Compared 2% of the time

More Zenoss Cloud Competitors

Product Reports

Buyer's Guide

Nagios Core

April 2026

Download Nagios Core product report

Buyer's Guide

Zenoss Cloud

April 2026

Download Zenoss Cloud product report

Also Known As

No data available

Cloud Monitoring, Zenoss Service Dynamics

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

Zenoss Cloud provides a comprehensive overview of IT environments, supporting cross-cloud functionality, scalability, and robust integrations. It offers dynamic monitoring through its intuitive dashboard and supports hybrid deployments across cloud and on-premises infrastructures.

Zenoss Cloud enables users to monitor network infrastructure and operator platforms efficiently. With features like agentless monitoring and real-time alerts, Zenoss Cloud integrates seamlessly with external systems such as ITSM tools. Its flexible functionality allows for the management of both on-premises and cloud infrastructures like AWS and Azure. Users benefit from easy setup and strong technical support, although they seek enhancements in AI capabilities and simpler installation. The pricing model and complexity for beginners and storage monitoring are areas for improvement.

What are the key features of Zenoss Cloud?

Dynamic Monitoring: Enhances user experience with real-time insights.
Cross-Cloud Functionality: Supports hybrid deployments across AWS and Azure.
Agentless Monitoring: Simplifies deployment with minimal overhead.
Scalability: Grows with your network's demands.
Custom Integration: Supports notifications and alerts tailored to user requirements.

What benefits should users expect from Zenoss Cloud?

Time Efficiency: Quick setup and operation save resources.
Comprehensive Support: Extensive documentation streamlines troubleshooting.
Cost-effective Monitoring: Prevents multiple charges in server monitoring.
Enhanced User Experience: Offers seamless integration with existing IT infrastructures.

Zenoss Cloud is widely used in monitoring solutions for industries including technology and data centers. It supports direct monitoring of systems like vSphere and NetApp, making it ideal for IT operations and managed services. Integration with tools such as ServiceNow and SolarWinds aligns it with diverse IT environments.

Zenoss

Sample Customers

Airbnb, Cisco, PayPal, FanDuel

2degrees, Rackspace, State of North Dakota, El Paso Independent School District, NWN Corporation

Buyer's Guide

Nagios Core vs. Zenoss Cloud

April 2026

Free Report: Nagios Core vs. Zenoss Cloud

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