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Nagios Core pros and cons

Vendor: Nagios
4.1 out of 5

Pros & Cons summary

Buyer's Guide

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Prominent pros & cons

PROS

Nagios Core enhances proactive resource management by preventing disasters before they occur.
Its notification system is highly efficient, providing timely alerts and escalations.
Valuable features include performance parameters, graphical reporting, and application performance monitoring.
The configuration of Nagios Core is lightweight, stable, and it integrates seamlessly with tools like Splunk, Datadog, and Dynatrace.
Being open source, Nagios Core is customizable and adaptable to specific needs, allowing the development and addition of plugins.

CONS

Nagios Core has a complex initial setup process that could be simplified.
Bandwidth monitoring is inadequate and needs improvement.
Scalability is a concern as it is not currently scalable.
Lack of a dedicated support contact makes problem resolution difficult.
The free version is limited in functionality compared to the paid version.
 

Nagios Core Pros review quotes

it_user873816 - PeerSpot reviewer
Strategic Staffing Solutions at a retailer with 1,001-5,000 employees
May 23, 2018
Key features include the GUI interface, its notification capabilities, and the real-time reporting.
it_user853911 - PeerSpot reviewer
Senior Systems Architect at Rezgateway
Jun 20, 2018
It has made the life of the network operations staff more proactive in managing the resources of the infrastructure. It prevents disasters long before they can take place.
it_user978732 - PeerSpot reviewer
Software Engineer at a transportation company with 10,001+ employees
Jun 16, 2019
Nagios monitors our servers, so we know if anything goes wrong and can solve the problem before it happens.
Learn what your peers think about Nagios Core. Get advice and tips from experienced pros sharing their opinions. Updated: January 2026.
880,490 professionals have used our research since 2012.
it_user1096917 - PeerSpot reviewer
Computer Engineer at a tech services company with 501-1,000 employees
Jun 30, 2019
I like the way the solution sends alerts and how it keeps on escalating them.
MN
Tech consultant at select softwares
Oct 2, 2019
The most valuable feature is the performance parameters of the system.
reviewer1123962 - PeerSpot reviewer
Network Operations Center Manager at a tech services company with 51-200 employees
Sep 27, 2020
The most valuable features are the reports and the way it generates the report in a graphical manner.
reviewer1276566 - PeerSpot reviewer
Network Engineer at a retailer with 1,001-5,000 employees
Jan 14, 2021
The solution is quite efficient.
NV
Sr. System Administrator at Guj Info Petro Limited
Mar 21, 2023
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.
MJ
Senior Software Engineer at Peristent Systems
Dec 22, 2021
Dashboard provides monitor of total assets.
Massimo Rubboli - PeerSpot reviewer
Information systems manager at Golfera
Jan 17, 2022
Nagios Core is stable.
 

Nagios Core Cons review quotes

it_user873816 - PeerSpot reviewer
Strategic Staffing Solutions at a retailer with 1,001-5,000 employees
May 23, 2018
Making it a little easier to configure and set up from the start would help. There are multiple layers that you have to wade through to be able to set it up, to do it the right way, and to get it to do what you want it to do.
it_user853911 - PeerSpot reviewer
Senior Systems Architect at Rezgateway
Jun 20, 2018
It is a bit slow due to latency.
it_user978732 - PeerSpot reviewer
Software Engineer at a transportation company with 10,001+ employees
Jun 16, 2019
It's not that easy to install the product itself. Also, the UI is a bit hard for regular users to navigate through.
Learn what your peers think about Nagios Core. Get advice and tips from experienced pros sharing their opinions. Updated: January 2026.
880,490 professionals have used our research since 2012.
it_user1096917 - PeerSpot reviewer
Computer Engineer at a tech services company with 501-1,000 employees
Jun 30, 2019
I would like to see more training videos.
MN
Tech consultant at select softwares
Oct 2, 2019
The core version is no match for the XI version.
reviewer1123962 - PeerSpot reviewer
Network Operations Center Manager at a tech services company with 51-200 employees
Sep 27, 2020
The scalability needs improvement, it's not scalable at this time.
reviewer1276566 - PeerSpot reviewer
Network Engineer at a retailer with 1,001-5,000 employees
Jan 14, 2021
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.
NV
Sr. System Administrator at Guj Info Petro Limited
Mar 21, 2023
Bandwidth monitoring is the pain point for me because Nagios Core does not monitor bandwidth effectively like Cacti does.
MJ
Senior Software Engineer at Peristent Systems
Dec 22, 2021
Would benefit from aggregations if a particular server goes down.
Massimo Rubboli - PeerSpot reviewer
Information systems manager at Golfera
Jan 17, 2022
The dashboard and monitoring features could be improved.