Nagios Core OverviewUNIXBusinessApplication

Nagios Core is the #23 ranked solution in our list of Infrastructure Monitoring tools. It is most often compared to Zabbix: Nagios Core vs Zabbix

What is Nagios Core?

This is IT infrastructure monitoring's industry-standard, open-source core. Free without professional support services.

Nagios Core Buyer's Guide

Download the Nagios Core Buyer's Guide including reviews and more. Updated: September 2021

Nagios Core Customers
Airbnb, Cisco, PayPal, FanDuel
Nagios Core Video

Pricing Advice

What users are saying about Nagios Core pricing:
  • "We are using the open-source, unpaid version."

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Nishith Vyas
Sr. System Administrator at Guj Info Petro Limited
Real User
Top 10
Well priced, lightweight and reliable

What is our primary use case?

The overall objective to use Nagios Core is "organization doesn't want to pay high monitoring cost" & still wanted to monitor entire data center infra. So, deployed Nagios Core to monitor typical server resource utilization parameters such as CPU, Memory & Disk Utilization. Later, we configured PNP4Nagios which provides graphical level representation & to see when the WARNING & CRITICAL Level crosses. PNP4Nagios became very useful to get all historical (mostly past 1 year) records when asked.

Pros and Cons

  • "Other products are good but from the configuration point of view Nagios is really very lightweight. The price is really good in my opinion. Another important thing is that my Nagios engine still works with Dual core 8GB ram for the last 10 years."
  • "Bandwidth monitoring is the pain point for me because Nagios Core does not monitor bandwidth effectively like Cacti does."

What other advice do I have?

My advice to anyone considering using Nagios Core is, from the data center point of view you should try & deploy Nagios Core especially when you need an end to end, full functional monitoring system, but organizations doesn't want to spend too much in 24x7 monitoring system. Nagios is really very good from that point of view. If you are paying, Nagios XI is good. If you don't pay, Nagios core is also good. But Nagios Core needs more expertise. You need to put too much effort into configuring different kinds of services. Installation is straight-forward. I don't have any advice other than that…
JE
Network Engineer at a retailer with 1,001-5,000 employees
Real User
Top 20
Efficient and easy to manage with good stability

What is our primary use case?

We primarily use the solution for monitoring ops for computers and our server. We're considering adding other device monitoring as well and at points of sale.

Pros and Cons

  • "The solution is quite efficient."
  • "It would be nice if the company offered a sales or contract manager that was dedicated to our company so that we would have some sort of link to Nagios, and if we had issues or questions, we'd be able to contact them directly."

What other advice do I have?

We're just customers and end-users. We don't have a business relationship with Nagios. We're using the latest version of the solution. We're still in the early days in terms of usage. We're still feeling the solution out and testing it for its acceptability within the greater framework of our organization's requirements. We're looking to test it at the point of sale to see how successfully it operates. Overall, I would recommend the solution to other organizations. I would rate the solution eight out of ten.
Learn what your peers think about Nagios Core. Get advice and tips from experienced pros sharing their opinions. Updated: September 2021.
534,226 professionals have used our research since 2012.
Manoj Nair
Tech Specialist at Select Softwares
Real User
Top 5Leaderboard
Alerts to network element errors, but the core version is no match for the XI version

What is our primary use case?

The primary use for this solution is basic network monitoring of a MPLS network.

Pros and Cons

  • "The most valuable feature is the performance parameters of the system."
  • "The core version is no match for the XI version."

What other advice do I have?

Definitely try it out if you have zero budget Even if you don't have a budget restriction please do give it a try
MJ
Network Operations Center Manager at a tech services company with 51-200 employees
Real User
Top 10
Open-source, good reporting and online documentation, but the GUI needs improvements

Pros and Cons

  • "The most valuable features are the reports and the way it generates the report in a graphical manner."
  • "The scalability needs improvement, it's not scalable at this time."

What other advice do I have?

I would recommend it for small network deployments or if you have other open source applications or other metrics like utilization, CPU. So if you're running alongside other open source applications and in the small space, it works. But anything beyond that is not recommended. I would rate Nagios Core a six out of ten.
Buyer's Guide
Download our free Nagios Core Report and get advice and tips from experienced pros sharing their opinions.