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Nagios Core

Nagios Core

Overview

What is Nagios Core?

Nagios provides monitoring of all mission-critical infrastructure components. Multiple APIs and community-build add-ons enable integration and monitoring with in-house and third-party applications for optimized scaling.

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Learn from top reviewers

Old reliable solution

Rating: 7 out of 10
May 7, 2024
IncentivizedVetted ReviewVerified User
In our organization, we use Nagios Core to monitor servers and applications for our clients. We also use it to monitor our and our customers' infrastructure for which we are c...
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Verified user
Technician
Nagios Core10 years of experience

anything or everything just monitor in Nagios Core

Rating: 10 out of 10
May 6, 2024
IncentivizedVetted ReviewVerified User
To monitor the critical business application services. get better control over the servers. Basically, Nagios Core helps us to act quickly and to reduce the impact of any bu...
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Verified user
Team Lead
Nagios Core13 years of experience

Nagios [Core]: Best Open Source Monitoring Tool

Rating: 8 out of 10
September 23, 2021
Vetted ReviewVerified User
Yes, our organization uses Nagios [Core] to monitor all infrastructure and it works finely in a diverse environment. It has very good documentation from implementation to moni...
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Pavan Mehare
Administrator - Information Technology
Linux Administrator
Amdocs
Nagios Core2 years of experience

Nagios Core - sit back and monitor at ease!

Rating: 9 out of 10
February 14, 2020
IncentivizedVetted ReviewVerified User
Nagios Core is currently being used by our infrastructure teams and enterprise monitoring. We have about 50 users accessing the app, with 3 people serving as admins. The tool ...
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D. Robert Hamilton
Technician - Information Technology
IT Senior Client Services Engineer
DTE Energy
Nagios Core5 years of experience

Industry standard monitoring

Rating: 7 out of 10
December 11, 2019
IncentivizedVetted ReviewVerified User
Nagios is our enterprise monitoring solution for all servers and network devices that supporting staff needs to be alerted on. It is used by most of our IT staff, as well as o...
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Chris Saenz
Engineer - Information Technology
Lead System Engineer
Azusa Pacific University
Nagios Core8 years of experience
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Pricing

View all pricing

Single License

Free

On Premise

Single License

Free

Cloud

Entry-level set up fee?

  • No setup fee
For the latest information on pricing, visithttps://www.nagios.com/products/nagios…

Offerings

  • Free Trial
  • Free/Freemium Version
  • Premium Consulting/Integration Services
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Product Demos

nagios core

YouTube

Nagios Exploit DEMO - Remote CodeExec CVE-2016-9565 & Root PrivEsc CVE-2016-9566

YouTube
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Product Details

What is Nagios Core?

Nagios provides monitoring of all mission-critical infrastructure components including applications, services, operating systems, network protocols, systems metrics, and network infrastructure. Multiple APIs provide for simple integration with in-house and third-party applications. Thousands of community-developed add-ons extend monitoring and native alerting functionality. Third-party add-ons are available for monitoring in-house applications, services, and systems.

The vendor says Nagios is the industry standard In IT Infrastructure Monitoring. The vendor says the powerful Nagios Core 4 monitoring engine provides a high level of performance, and that its high-efficiency worker processes allow for scalability and monitoring effectiveness. It is designed to provide a central view of a company's entire IT operations network and business processes. Multi-user access to web interface allows stakeholders to view relevant infrastructure status. User-specific views ensures clients only see the infrastructure components they’re authorized for.

Nagios Core Features

  • Supported: Advanced Graphs & Visualizations
  • Supported: Performance & Capacity Planning Graphs
  • Supported: Configuration Wizards
  • Supported: Advanced Infrastructure Management
  • Supported: Configuration Snapshot Archive
  • Supported: Advanced User Management
  • Supported: Service-Level Agreement (SLA) Reports
  • Supported: Extendable Architecture

Nagios Core Integrations

Nagios Core Competitors

Nagios Core Technical Details

Deployment TypesOn-premise, Software as a Service (SaaS), Cloud, or Web-Based
Operating SystemsWindows, Linux, Mac
Mobile ApplicationApple iOS, Android
Supported CountriesGlobal
Supported LanguagesEnglish, Spanish, Italian, Russian, German, French, Japanese, Simplified Chinese, Traditional Chinese, Korean, Portuguese, Polish

Frequently Asked Questions

Nagios provides monitoring of all mission-critical infrastructure components. Multiple APIs and community-build add-ons enable integration and monitoring with in-house and third-party applications for optimized scaling.

SolarWinds Network Performance Monitor (NPM), SolarWinds Security Event Manager (SEM), and N-able Risk Intelligence are common alternatives for Nagios Core.

Reviewers rate Support Rating highest, with a score of 7.7.

The most common users of Nagios Core are from Mid-sized Companies (51-1,000 employees).
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Comparisons

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Reviews and Ratings

(166)

Reviews

(1-5 of 9)

Nagios review

Rating: 9 out of 10
Incentivized
June 10, 2016
Use Cases and Deployment Scope
Nagios is used by the Operations Department in order to monitor our infrastructure and some application healthchecks.
Pros
  • There isn't a huge learning curve for someone who is new to the organization to jump in and start creating health checks and auditing the old ones.
  • It provides information clearly and organizes it for the NOC or whoever may be looking at it to have a good idea of where to start their troubleshooting.
Cons
  • At time Nagios isn't the quickest to clear alerts and some odd issues can stop it from clearing alerts that I've seen in the past, such as a new host type being added to the configuration without a valid host being spun up before hand. I've only seen it at one previous company.
Likelihood to Recommend
It is great for monitoring our infrastructure and some applications. I haven't attempted anything outside of this.

Powerful Monitoring tool

Rating: 10 out of 10
Incentivized
July 25, 2019
SP
Steven Peterson
Senior Systems Analyst
Mainstream Technology Group (Computer & Network Security, 51-200 employees)
Vetted Review
Verified User
Nagios Core
5 years of experience
View profile
Use Cases and Deployment Scope
We use Nagios along with several hundred custom checks to monitor our environment and customer environments. We have been running Nagios Open source for 15 years, I have been directly involved in managing it for 5 years. It addresses our need for Systems monitoring and works alongside many other tools in our Open source Ecosystem
Pros
  • Endpoint Monitoring
  • Raising Issues
  • Network Monitoring
Cons
  • Steep Learning curve
  • Highly customizable to a fault
Likelihood to Recommend
It is well suited for use with skilled system administrators who know what they need to monitor and what they need for alerts.
It is not well suited if you just want general monitoring with out a good grasp of why they are monitoring.

If you require reliability in your IT infrastructure then you need Nagios!

Rating: 9 out of 10
Incentivized
October 17, 2019
Verified User
Administrator in Information Technology
Health, Wellness and Fitness Company, 501-1000 employees
Vetted Review
Verified User
Nagios Core
12 years of experience
Use Cases and Deployment Scope
We use Nagios to monitor our internal IT infrastructure in our headquarters and remote office. Nagios being open source has great benefits by providing vast amounts of configurations capabilities and the support community is another added bonus. We have been pro-active and less reactive when issues arise and reliability has greatly increased.
Pros
  • I have not run into a device that Nagios can't monitor.
  • One of the best parts is that Nagios is open source and free!
  • It has great customization and can be configured to your exact needs.
Cons
  • The learning curve with Nagios is a little steep and can take some time.
  • Wish Nagios sold a cloud option or managed option.
  • UI needs improvement.
Likelihood to Recommend
Nagios is great at monitoring your internal IT infrastructure and is highly customized to fit your exact needs. Our reliability has improved vastly. We are able to monitor the system more closely and resolve issues before they happen. It's less suited for a hybrid infrastructure.

Nagios - the gold standard in systems monitoring

Rating: 10 out of 10
Incentivized
May 31, 2016
Verified User
Administrator in Information Technology
Investment Management Company, 201-500 employees
Vetted Review
Verified User
Nagios Core
2 years of experience
Use Cases and Deployment Scope
Nagios is the industry standard for IT systems monitoring. I use it to keep an eye on all my critical systems. Pretty much every aspect of a system can be monitored with Nagios, from a simple up/down check, to available disk space, to service status, to hardware status. It allows me to identify problems before they become user-impacting.
Pros
  • Cost - you can pay for support and an easier interface, or you can get all the monitoring you need for free.
  • Extensibility - you can pick from the vast array of checks available, or roll your own custom checks.
  • Customizability - you can pick different interfaces, add in historical graphing, configure maintenance windows, and much more.
Cons
  • Learning curve - can be steep, especially for those not familiar with Linux.
  • Messy configurations - it is easy to get your configuration files into a mess without careful management.
  • Breakability - it is easy to break your configuration accidentally, and can be difficult to figure out what you did wrong.
Likelihood to Recommend
Nagios is perfect for companies that don't have a budget for IT monitoring, but still expect systems to be up 24x7. However, if you don't have anyone on staff who has used Linux, you might have a hard time getting it up and running. It also makes a great companion to more in depth monitoring solutions.

Excellent tool that's widely used - and best of all, it's free!

Rating: 9 out of 10
Incentivized
November 07, 2019
Verified User
Employee in Information Technology
Information Technology and Services Company, 1-10 employees
Vetted Review
Verified User
Nagios Core
10 years of experience
Use Cases and Deployment Scope
Nagios is an excellent open-source tool. There is a large community of users who have developed scripts and make them available for other users for just about anything you could ever want to monitor. Nagios is being used to monitor various applications, servers, websites, and services. Once you have set up a few things it is very straight forward to use and configure templates to repeat the task for new devices.
Pros
  • Monitoring.
  • Notifications.
  • Integration.
  • Strong community of users with shared plugins.
Cons
  • The native graphing/trending could use updating. It is great for its traditional reporting, but seeing the graphs and trends out of the box would be helpful.
Likelihood to Recommend
Nagios Core is a great tool. It's open-source and free, there is a great community, shared plugins, and many other reasons which make it a great tool. It's very good for small to medium-sized businesses and if you configure it appropriately it could be used for larger organizations as well.
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