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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
11th
Average Rating
8.2
Reviews Sentiment
7.3
Number of Reviews
51
Ranking in other categories
IT Infrastructure Monitoring (10th)
OmniPeek
Ranking in Network Monitoring Software
45th
Average Rating
7.8
Reviews Sentiment
6.0
Number of Reviews
8
Ranking in other categories
Application Performance Monitoring (APM) and Observability (38th)
 

Mindshare comparison

As of May 2026, in the Network Monitoring Software category, the mindshare of Nagios Core is 1.6%, down from 3.0% compared to the previous year. The mindshare of OmniPeek is 0.6%, up from 0.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Network Monitoring Software Mindshare Distribution
ProductMindshare (%)
Nagios Core1.6%
OmniPeek0.6%
Other97.8%
Network Monitoring Software
 

Featured Reviews

HY
Senior System Administrator at Interactive Group
Monitoring solution provides comprehensive visibility across IT infrastructure
The good thing about Nagios Core is it covers everything. Everything in the IT domain, you can monitor anything. You can even monitor printers, the ports of printers, Core workstations, and storage. You can monitor the workflow Core and the utilization of computes. If you want to grasp everything of your IT equipment on a single interface, you can use Nagios. It's the best one. It provides dashboards, and you can also configure your emails and alerts with it. If something is critical, you can configure it to notify via emails. It has a very handy dashboard, providing live alerts and visibility for everything.
AK
Senior Software Engineer at Microchip Technology Inc.
Helps analyze network packets effectively and saves time for testers
I have utilized the packet capturing capabilities in OmniPeek. Using the Alpha sniffer and hardware-supported network devices, we can perform sniffer capturing for Wi-Fi wireless packets and router packets. The interface allows us to capture packets and observe connection establishment, data transfer, and the downloading and uploading of packets, such as TCP and UDP packets. The software works for both wireless and wired connections, including Ethernet. As a wireless test engineer in the wireless industry, the features of OmniPeek help me monitor network activity. While there are alternatives such as Wireshark, OmniPeek supports Windows and is particularly helpful for testers, especially for device certification validation. This software enables packet analysis to verify protocol compliance and identify issues. For developers, packet captures from OmniPeek assist in understanding and debugging issues.

Quotes from Members

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

Pros

"The features of Nagios Core that we find most valuable are the plugins we use, we can check the uptime and see how many servers and routers and create groups accordingly."
"Nagios monitors our servers, so we know if anything goes wrong and can solve the problem before it happens."
"The application performance monitoring feature is valuable, and we primarily use it for user experience monitoring and determining which layer the problem happened to resolve it."
"Our customers like that Nagios Core is an open source solution. It can be customized to our customers' specific needs."
"It sends alerts to the right people which ensures there is no delay in the correct person or team looking into issues, and it has helped to reduce downtime in the production environment to almost zero so we now spend less time on network or server administration."
"We can get real time statistics of our servers which improves our monitoring."
"We use the product to monitor server applications."
"The most valuable feature depends on the project. It's great if you need to check to ensure a service is running 24/7. I can use the full solution for free, and it's flexible. If I need to add a dashboard, I can integrate it with Nagios. Cloud synchronization is wonderful."
"It's a solid piece of software. It's stable."
"OmniPeek shows the entire packet flow and structure, particularly in security-related scenarios, whereas Wireshark sometimes fails to capture all packets."
"The most valuable feature of OmniPeek was the ability it gave us to see the connection procedure."
"The most valuable feature of OmniPeek was the ability it gave us to see the connection procedure."
"The most valuable feature of OmniPeek is the ability to assign custom color codes to the different packets easily."
"OmniPeek is a good product, but you should know its purpose for your organization."
"The most valuable feature is OmniPeek is user-friendly."
"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."
 

Cons

"The initial setup process could be easier."
"t was a little hard to get our setup represented in the configuration."
"The mapping is a little hard."
"Generally, it does what I need it to do, but better error reporting would be great."
"The initial setup was complex, mainly because it was in Linux and had many packages that we're not used to."
"The mapping is a little hard."
"I like to have the option to configure Nagios using the web interface."
"Lessening the price point would be an improvement."
"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."
"I would like to see the tool work in an open environment the same as how it does in a closed environment."
"I don't see a clear roadmap in the future for improving this software."
"OmniPeek doesn't support Linux or Unix installations, which prompted the shift to Wireshark."
"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 needs to improve its performance level."
"Making it more clear on how to configure the filters, or really automating them, would be an improvement."
"I am not using OmniPeek for automation, we only do manual testing. Automation testing is tedious to do."
 

Pricing and Cost Advice

"It's free."
"We are using the free version."
"We are using the free version of Nagios Core."
"I would rate the solution's pricing an eight out of ten."
"Most the plugin features are free."
"The enterprise version has technical support. The version we are using is free."
"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."
"It's free."
"The pricing for this solution could be improved, as it is a very expensive product."
"There are different types of licenses available."
"We have only purchased the add-on once and have not paid for any subsequent versions as it was too costly for us."
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Top Industries

By visitors reading reviews
Comms Service Provider
10%
Manufacturing Company
10%
Computer Software Company
8%
Financial Services Firm
8%
Comms Service Provider
13%
Manufacturing Company
10%
Educational Organization
9%
Healthcare Company
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business20
Midsize Enterprise11
Large Enterprise24
By reviewers
Company SizeCount
Midsize Enterprise1
Large Enterprise7
 

Questions from the Community

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 is your primary use case for Nagios Core?
I was a senior system administrator. I've been using Nagios Core for more than ten years now. It can be used to monitor hosts, such as machines, and monitor services of any kind. I'm using it to mo...
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: April 2026.
894,738 professionals have used our research since 2012.