What users are saying about
141 Ratings
<a href='https://www.trustradius.com/static/about-trustradius-scoring' target='_blank' rel='nofollow noopener noreferrer'>trScore algorithm: Learn more.</a>Score 7.9 out of 100
Based on 141 reviews and ratings
15 Ratings
<a href='https://www.trustradius.com/static/about-trustradius-scoring' target='_blank' rel='nofollow noopener noreferrer'>trScore algorithm: Learn more.</a>Score 7.8 out of 100
Based on 15 reviews and ratings
Likelihood to Recommend
Nagios Core
Nagios monitoring is well suited for any mission critical application that requires per/second (or minute) monitoring. This would probably include even a shuttle launch. As Nagios was built around Linux, most (85%) plugins are Linux based, therefore its more suitable for a Linux environment.
As Nagios (and dependent components) requires complex configurations & compilations, an experienced Linux engineer would be needed to install all relevant components.
Any company that has hundreds (or thousands) of servers & services to monitor would require a stable monitoring solution like Nagios. I have seen Nagios used in extremely mediocre ways, but the core power lies when its fully configured with all remaining open-source components (i.e. MySQL, Grafana, NRDP etc). Nagios in the hands of an experienced Linux engineer can transform the organizations monitoring by taking preventative measures before a disaster strikes.
Senior Systems Architect
RezgatewayComputer Software, 51-200 employees
Rackspace Cloud Hosting
Augment current IT staff. Repeated tasks that can be part of a runbook. Setting up and tearing down of network services and servers.

Verified User
Engineer in Information Technology
Construction Company, 1001-5000 employeesPros
Nagios Core
- Monitoring of services is one of the biggest benefits for our company. Being able to respond in a timely fashion keeps business smooth.
- Hardware and device monitoring are easy to set up with proper parameters.
- Notification to key staff to be able to respond quickly makes issues go away faster.
Operations/Systems Manager
Crowell SystemsComputer Software, 51-200 employees
Rackspace Cloud Hosting
- Excellent customer service - Their support teams respond quickly.
- Simplified migration services, limiting downtime.
- Fantastic communication - They keep you appraised to any situations that may arise, whether it's day-to-day business or a change in service.
Senior CRM & Technology Manager
Validity Screening SolutionsHuman Resources, 51-200 employees
Cons
Nagios Core
- Nagios could use core improvements in HA, though, Nagios itself recommends monitoring itself with just another Nagios installation, which has worked fine for us. Given its stability, and this work-around, a minor need.
- Nagios could also use improvements, feature wise, to the web gui. There is a lot in Nagios XI which I felt were almost excluded intentionally from the core project. Given the core functionality, a minor need. We have moved admin facing alerts to appear as though they originate from a different service to make interacting with alerts more practical.

Verified User
Administrator in Information Technology
Financial Services Company, 501-1000 employeesRackspace Cloud Hosting
- No real big issues with Rackspace itself. Some issues can occur with mail clients, but Rackspace support is helpful to sort them out.

Verified User
Manager in Information Technology
Arts and Crafts Company, 11-50 employeesLikelihood to Renew
Nagios Core
Nagios Core 9.9
Based on 3 answers
We're currently looking to combine a bunch of our network montioring solutions into a single platform. Running multiple unique solutions for monitoring, data collection, compliance reporting etc has become a lot to manage.

Verified User
Engineer in Information Technology
Hospitality Company, 501-1000 employeesRackspace Cloud Hosting
No score
No answers yet
No answers on this topic
Usability
Nagios Core
Nagios Core 4.0
Based on 1 answer
The Nagios UI is in need of a complete overhaul. Nice graphics and trendy fonts are easy on the eyes, but the menu system is dated, the lack of built in graphing support is confusing, and the learning curve for a new user is too steep.

Verified User
Engineer in Information Technology
Hospitality Company, 501-1000 employeesRackspace Cloud Hosting
Rackspace Cloud Hosting 7.0
Based on 1 answer
Due to their vast areas of expertise, they can be leveraged in different projects. They can also be used to augment the current architecture and provide redundancy as needed. We use their engineers to review architectures and get industry recommendations.

Verified User
Engineer in Information Technology
Construction Company, 1001-5000 employeesSupport Rating
Nagios Core
Nagios Core 8.0
Based on 9 answers
I haven't had to use support very often, but when I have, it has been effective in helping to accomplish our goals. Since Nagios has been very popular for a long time, there is also a very large user base from which to learn from and help you get your questions answered.
Lead System Engineer
Azusa Pacific UniversityHigher Education, 1001-5000 employees
Rackspace Cloud Hosting
Rackspace Cloud Hosting 7.4
Based on 2 answers
Honestly, if it wasn't for the way in which ticket updates are shared, it would be a ten. They provide excellent support, from sales to technical to even migration services. I've always gotten my questions answered clearly, by someone who is human. If answers were displayed via email as well, rather than just a notice that I needed to login to see a message, it would be even better.
Senior CRM & Technology Manager
Validity Screening SolutionsHuman Resources, 51-200 employees
Alternatives Considered
Nagios Core
We chose Nagios Core over Zabbix and Zenoss because it was easier to get up and running and configure than the other two products. They required network scanning for assets and then required you to enter every little detail about the host. With Nagios Core, we just entered our hosts in a single configuration file, then added services for each one. It took about an hour to begin monitoring 25 hosts.

Verified User
Manager in Information Technology
Electrical/Electronic Manufacturing Company, 201-500 employeesRackspace Cloud Hosting
LiquidWeb or Amazon both offer some products that could be considered similar. I will say though, after years of dealing with Rackspace, their service is what always has me coming back. Their support is typically so much better than other vendors that I hesitate to use other vendors. Pricing might be cheaper, but when you have an issue and need it resolved ASAP, then Rackspace has come through in the majority of cases for me.

Verified User
Director in Information Technology
E-Learning Company, 11-50 employeesReturn on Investment
Nagios Core
- With it being a free tool, there is no cost associated with it, so it's very valuable to an organization to get something that is so great and widely used for free.
- You can set up as many alerts as you want without incurring any fees.

Verified User
Employee in Information Technology
Information Technology and Services Company, 1-10 employeesRackspace Cloud Hosting
- I have overpaid in the past for services I didn't need
- The steepish learning curve might slow things down at first
- I have learned a lot using Rackspace Cloud Monitoring!
VP
Reach Advertising Inc.Automotive, 1-10 employees
Pricing Details
Nagios Core
General
Free Trial
Yes
Free/Freemium Version
Yes
Premium Consulting/Integration Services
Yes
Entry-level set up fee?
No
Nagios Core Editions & Modules
On-premise Edition
Single License | Free |
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SaaS Edition
Single License | Free |
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Additional Pricing Details
—Rackspace Cloud Hosting
General
Free Trial
—Free/Freemium Version
—Premium Consulting/Integration Services
—Entry-level set up fee?
No
Rackspace Cloud Hosting Editions & Modules
—