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Nagios Core vs OmniPeek comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Oct 10, 2024

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
12th
Average Rating
8.2
Reviews Sentiment
7.0
Number of Reviews
51
Ranking in other categories
IT Infrastructure Monitoring (11th)
OmniPeek
Ranking in Network Monitoring Software
46th
Average Rating
7.8
Reviews Sentiment
6.0
Number of Reviews
8
Ranking in other categories
Application Performance Monitoring (APM) and Observability (35th)
 

Mindshare comparison

As of October 2025, in the Network Monitoring Software category, the mindshare of Nagios Core is 2.5%, down from 3.2% compared to the previous year. The mindshare of OmniPeek is 0.4%, up from 0.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Network Monitoring Software Market Share Distribution
ProductMarket Share (%)
Nagios Core2.5%
OmniPeek0.4%
Other97.1%
Network Monitoring Software
 

Featured Reviews

Nishith-Vyas - PeerSpot reviewer
Valuable reporting and alert system with room for PDF export improvements
The NetEase reporting structure needs improvement, especially the availability report, which is weak. It should be generated automatically with minimal human intervention and should be exportable as a PDF. Besides that, an integrated PDF export feature for reports is necessary. Also, the alert mechanism and graphing mechanism need to be integrated properly into Nagios Core. Currently, integrating these requires advanced Linux knowledge. Integration of more visualization tools like Grafana and Prometheus for better graphing and visualization is also recommended.
Vinal-Patel - PeerSpot reviewer
Real-time analytics and alerts improve application performance and network operations
OmniPeek's ability to convert application visibility into flow helps me quickly understand application performance over LAN, WAN, or wireless. Its real-time analytics, integrated with LiveNX, allow me to monitor business-critical applications and set up alerts for application performance issues. This centralized dashboard and alert system is highly valuable for maintaining network operations.

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"We mostly use Nagios Core to integrate with Python and Bash Script."
"I would rate the overall solution ten points out of ten."
"The reporting structure and the feature set are valuable to me."
"The most valuable feature is the performance parameters of the system."
"Nagios Core is stable."
"Key features include the GUI interface, its notification capabilities, and the real-time reporting."
"The solution is quite efficient."
"Alert calls occur anytime a service goes down or a matrix is difficult and that helps us to quickly restore service and transfer work."
"The most valuable feature is OmniPeek is user-friendly."
"It's a solid piece of software. It's stable."
"I believe the most crucial feature of OmniPeek search is the ability to sniff packets based on channel switching."
"The most valuable feature of OmniPeek was the ability it gave us to see the connection procedure."
"The most valuable features are the voice bot, which checks the quality of service for voice, and the expert view that gives me insight on what and where to troubleshoot."
"The most valuable feature of OmniPeek is the ability to assign custom color codes to the different packets easily."
"OmniPeek's ability to convert application visibility into flow helps me quickly understand application performance over LAN, WAN, or wireless."
 

Cons

"The initial setup process could be easier."
"Cloud monitoring is an area for improvement because there aren't too many plugins available."
"We're using the free version, which limits us in terms of the things that we can do. If we had the paid version, a lot of our issues would probably go away. For example, we can't isolate instances that are being built or updated with the production ones. When they're being built, on Nagios, they're showing in red. It'd be nice to be able to partition those off until they're all green, and then we can bring them into the environment. This is probably because we've got the free version and not the paid version. If we went for the paid version, it would probably allow us to do exactly what we want to or remove the restrictions that we have, but if we are able to isolate instances in the free version, it would make life much easier."
"Nagios Core could improve by adding a user interface. If you want the user interface you have to use Nagios XI."
"The tool needs to improve the integrations."
"Nagios Core is limited in terms of distributed setups, and there is no central view for remote data centers."
"Nagios Core does not have a graphic display."
"The core version is no match for the XI version."
"The solution's automation has room for improvement."
"I would like to see the tool work in an open environment the same as how it does in a closed environment."
"Making it more clear on how to configure the filters, or really automating them, would be an improvement."
"I don't see a clear roadmap in the future for improving this software."
"I would like to see the saving feature improved. We have had issues if you do not save your progress then you have to start from the beginning."
"OmniPeek doesn't support Linux or Unix installations, which prompted the shift to Wireshark."
"I am not using OmniPeek for automation, we only do manual testing. Automation testing is tedious to do. The automation should be more user-friendly. I have exposed some APIs but the usage is not user-friendly."
 

Pricing and Cost Advice

"Lessening the price point would be an improvement."
"Nagios Core is free to use."
"Nagios Core is a cheap solution."
"We are using the free version."
"The solution is expensive."
"It's free."
"I would rate the solution's pricing an eight out of ten."
"The Nagios Core (PNP4Nagios + Core) is free and can be setup by Netadmin within a few hours. The only additional cost is the cloud server."
"We have only purchased the add-on once and have not paid for any subsequent versions as it was too costly for us."
"The pricing for this solution could be improved, as it is a very expensive product."
"There are different types of licenses available."
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Top Industries

By visitors reading reviews
Computer Software Company
14%
Government
9%
Comms Service Provider
9%
Manufacturing Company
9%
Educational Organization
12%
Comms Service Provider
9%
University
8%
Government
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business20
Midsize Enterprise11
Large Enterprise22
By reviewers
Company SizeCount
Midsize Enterprise1
Large Enterprise7
 

Questions from the Community

What do you like most about Nagios Core?
What I like about Nagios Core is that it helps me ensure everything is running smoothly by checking the status of hosts and services.
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.
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.
What needs improvement with OmniPeek?
There isn't anything specific that needs improvement in OmniPeek, as it performs better than Wireshark for our requirements. However, OmniPeek could benefit from supporting different platforms. Pla...
What is your primary use case for OmniPeek?
I have been working with the OmniPeek product for almost two years at the start of my career, primarily using it for wireless 802.11 Wi-Fi packets, sniffer, and analysis. My experience with OmniPee...
What advice do you have for others considering OmniPeek?
I didn't explore much about OmniPeek beyond its basic features. OmniPeek is user-friendly and easy to start working with, especially on the Windows platform. For beginners, it is very easy to handl...
 

Comparisons

 

Also Known As

No data available
Savvius OmniPeek
 

Overview

 

Sample Customers

Airbnb, Cisco, PayPal, FanDuel
Apcon, Aruba Networks, Avaya Inc., Cisco Systems, Ekahau, Gigamon Systems, HP, IBM, IXIA, Meru Networks, Napatech, NextComputing, Procera Networks, Qualcomm Atheros, Ralink Technology Corporation, Telchemy
Find out what your peers are saying about Nagios Core vs. OmniPeek and other solutions. Updated: September 2025.
869,760 professionals have used our research since 2012.