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    Overview
    ProductRatingMost Used ByProduct SummaryStarting Price

    Nagios Core

    Score8.6 out of 10
    N/ANagios provides monitoring of all mission-critical infrastructure components. Multiple APIs and community-build add-ons enable integration and monitoring with in-house and third-party applications for optimized scaling.N/A

    PRTG

    Score8.9 out of 10
    N/APRTG Network Monitor is the flagship offering from German software company Paessler, for monitoring local and wide area networks (LANs & WANs), servers, websites, apps, and more.

    $2,149

    per year

    Pricing
    Nagios CorePRTG
    Editions & Modules
    Single License
    Free
    Single License
    Free
    PRTG 500
    $2,149
    per year
    Hosted 500
    $2,149
    per year
    PRTG 1,000
    $3,899
    per year
    Hosted 1000
    $3,899
    per year
    PRTG 2,500
    $8,099
    per year
    Hosted 2500
    $8,099
    per year
    PRTG 5,000
    $14,199
    per year
    Hosted 5000
    $14,199
    per year
    PRTG 10000
    $17,899
    per year
    PRTG Enterprise
    Custom Pricing
    subscription license
    Offerings
    Pricing Offerings
    Nagios CorePRTG
    Free Trial
    YesYes
    Free/Freemium Version
    YesNo
    Premium Consulting/Integration Services
    YesYes
    Entry-level Setup FeeNo setup feeNo setup fee
    Additional Details——
    More Pricing Information
    Community Pulse
    Nagios CorePRTG
    Considered Both Products
    Nagios Enterprises
    Chose Nagios Core
    As a backup NMS, it is better to invest to Nagios since it costs less than any other competitors which [provide] the same level of service. Maybe PRTG gives more features but you don't need all [those] features for your daily use so Nagios gives you what you need when it comes …
    Incentivized
    Chose Nagios Core
    PTRG gets expensive after the free 100 endpoints for small organizations.
    Incentivized
    Chose Nagios Core
    Nagios presents greater robustness, efficiency, and clarity in presenting required results.
    Incentivized
    Chose Nagios Core
    Nagios is more configurable than competitors and we originally wanted something we could spin up quick for some simple checks. As our needs grew, our understanding and use of Nagios grew, and it was a natural choice. Having personally used other monitoring solutions, I prefer …
    Incentivized
    Chose Nagios Core
    We selected Nagios because of economic constraints with a tool completely free, nor to have a stable product that has reached a stable state since years. . We wanted an extensible product based on number of plugins and a product that can grab datas from many infrastructure …
    Incentivized
    Paessler
    Chose PRTG
    In comparison with two other similar tools I have used in the past, I would put PRTG in the middle strictly in terms of features/performance, but at the top when overall value is considered. While SolarWinds does have some features that PRTG lacks, it comes at a much higher …
    Incentivized
    Chose PRTG
    I found Nagios very difficult to manage and use. I used it on a Linux server and we are a Windows shop so it was not as easy for other IT staff to administer. It was also mostly text-based configuration so it was more difficult to configure.
    Incentivized
    Chose PRTG
    With PRTG it comes down to ease of use. Compared with products like Nagios, PRTG is so much simpler and more straightforward to set up, use and maintain, making it easy to manage existing sensors as well as add new ones, and create a clear and easy monitoring platform. Users …
    Incentivized
    Chose PRTG
    Is was the most powerful tool and easy to integrate. For Nagios you need Unix knowledge und SCCM is very complicated to install and configure.
    Incentivized
    Chose PRTG
    The mobile app and ease of use set PRTG apart from the others. PRTG can be up and running in a much shorter time than any other product I have used or evaluated. Templates can be set up so once a system is detected the appropriate sensors will be created automatically.
    Incentivized
    Chose PRTG
    Nagios and Icinga (which is itself a fork from Nagios) are decent enough solutions for free, being open source. They do take more to set up and maintain, with quite a lot of manual work and agent installs in some cases. So in comparison with PRTG, they require more labor, but …
    Incentivized
    Chose PRTG
    PRTG is more affordable and easier to set up, at least for an SMB than Solarwinds, and is just more user-friendly than Nagios.
    Incentivized
    Chose PRTG
    PRTG has superior performance, a greater community and online documentation, more accurate data collection, and more complete configuration and operating environment than competitors.
    Incentivized
    Chose PRTG
    PRTG wins on price. Other tools have similar capabilities. However, there was always some trade-off to make. Products like Zabbix and Nagios are overly complicated to configure, so there is a significant time cost. Tools like Datadog and OpManager just cost too much for a small …
    Incentivized
    Chose PRTG
    PRTG is much simpler to implement than both Nagios and Zenoss; mind you, this was before Zenoss released their cloud option.

    It has a wide range of sensors and some are specific to both storage and network devices. The previous version didn't have any NetApp reporting at the …
    Incentivized
    Chose PRTG
    I'd like to say that it was because of the amount of features, because it is faster than the others, or because it is easier to use, or maybe because you really may want to scan your network really fast and list the device, but the real situation is that is cheaper than the …
    Incentivized
    Chose PRTG
    PRTG is what you'd expect from a solid tool for network and infrastructure monitoring. The hierarchical structure of the device views, the ability to group like sensors with tags, and even the printable QR codes at each level are key usability features that put a wealth of data …
    Incentivized
    Chose PRTG
    It has updates.
    Incentivized
    Key User Insights
    Would buy again
    100%
    Would buy again
    13 Answers
    98%
    Would buy again
    39 Answers
    Delivers good value for the price
    100%
    Delivers good value for the price
    13 Answers
    97%
    Delivers good value for the price
    38 Answers
    Happy with the feature set
    100%
    Happy with the feature set
    13 Answers
    100%
    Happy with the feature set
    40 Answers
    Lived up to sales and marketing promises
    91%
    Lived up to sales and marketing promises
    10 Answers
    93%
    Lived up to sales and marketing promises
    26 Answers
    Implementation went as expected
    100%
    Implementation went as expected
    12 Answers
    100%
    Implementation went as expected
    36 Answers
    Features
    Nagios CorePRTG
    Network Performance Monitoring
    Comparison of Network Performance Monitoring features of Nagios Core and PRTG Network Monitor
    Feature
    Nagios Core
    -
    Ratings
    PRTG Network Monitor
    8.3
    64 Ratings
    1% above category average
    Automated network device discovery00 Ratings8.357 Ratings
    Network monitoring00 Ratings9.763 Ratings
    Baseline threshold calculation00 Ratings8.154 Ratings
    Alerts00 Ratings9.264 Ratings
    Network capacity planning00 Ratings7.445 Ratings
    Packet capture analysis00 Ratings7.133 Ratings
    Network mapping00 Ratings8.045 Ratings
    Customizable reports00 Ratings7.954 Ratings
    Wireless infrastructure monitoring00 Ratings8.246 Ratings
    Hardware health monitoring00 Ratings9.161 Ratings
    Best Alternatives
    Nagios CorePRTG
    Small Businesses
    Veeam ONE
    Score8.2 out of 10
    Auvik
    Score9.9 out of 10
    Medium-sized Companies
    Icinga
    Score7.8 out of 10
    PingPlotter
    Score9.3 out of 10
    Enterprises
    Veeam ONE
    Score8.2 out of 10
    Nmap
    Score10 out of 10
    All AlternativesView all alternativesView all alternatives
    User Ratings
    Nagios CorePRTG
    Likelihood to Recommend
    8.5
    (44 ratings)
    9.2
    (64 ratings)
    Likelihood to Renew
    9.9
    (3 ratings)
    9.0
    (4 ratings)
    Usability
    4.0
    (1 ratings)
    9.3
    (4 ratings)
    Support Rating
    7.7
    (9 ratings)
    8.0
    (18 ratings)
    Implementation Rating
    -
    (0 ratings)
    9.0
    (1 ratings)
    User Testimonials
    Nagios CorePRTG
    Likelihood to Recommend
    Nagios Enterprises
    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.
    Incentivized
    Read full review
    Paessler
    integrates seamlessly with Windows servers via WMI and PowerShell, providing deep insights into resource usage, performance metrics, and system health. It's excellent at tracking CPU, memory, disk space, and event logs, enabling rapid troubleshooting and proactive maintenance. PRTG Network Monitor also effectively monitors Fortigate devices, providing detailed data on firewall health, traffic patterns, bandwidth utilization, VPN status, and security alerts. This visibility helps detect and resolve network security issues promptly.
    Incentivized
    Read full review
    Pros
    Nagios Enterprises
    • 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.
    Incentivized
    Read full review
    Paessler
    • Switch monitoring and finding out if there are communication issues or throughput alerts are reached
    • Big picture view of the whole infrastructure and what is functioning and what is not
    • Uptime tracking is great and lets us know for how long a device is down or overall uptime
    Incentivized
    Read full review
    Cons
    Nagios Enterprises
    • 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.
    Incentivized
    Read full review
    Paessler
    • Licensing on a per entity basis can be cumbersome for devices which have a ton of monitoring points like network switches\routers. Each sensor may count against a license, which could be a lot of you were monitoring every TX\RX of an SFP for example
    • A better method to easily template\copy monitors across devices
    • The navigation in the web GUI could be a little more straightforward in terms of the hierarchy
    Incentivized
    Read full review
    Likelihood to Renew
    Nagios Enterprises
    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.
    Incentivized
    Read full review
    Paessler
    I would renew it because the platform has brought us many technical and economic benefits that make the cost-benefit ratio very good. Additionally, to do so does not require large investments in training, licensing or infrastructure, and at the administration level, extensive knowledge is not required to be able to bear it.
    Incentivized
    Read full review
    Usability
    Nagios Enterprises
    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.
    Incentivized
    Read full review
    Paessler
    The tool is very intuitive to use and it is Windows-based (everybody knows how to use Windows) so it's easy to get into. Every time is setup in a hierarchy so if you have a good initial hierarchy design, it will really reduce administrative effort down the road.
    Incentivized
    Read full review
    Support Rating
    Nagios Enterprises
    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.
    Incentivized
    Read full review
    Paessler
    PRTG does everything we need it to do and more. Ease of use, ease of management and maintenance and clarity of monitoring of hundreds of different types of device and service gives this a large advantage over other products on the market that I have tried. I would definitely recommend it to anyone who needs a network monitoring product in their environment and even to people who don't know they need a solution yet!
    Incentivized
    Read full review
    Implementation Rating
    Nagios Enterprises
    No answers on this topic
    Paessler
    It's very important that de project's teams have different member of the TI. We have learned too late the importa of Security Analyst at the design architecture moment. We have to rebuild part of the implementation for made this big mistake.
    Incentivized
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    Alternatives Considered
    Nagios Enterprises
    Because we get all we required in Nagios [Core] and for npm, we have to do lots of configuration as it is not as easy as Comair to Nagios [Core]. On npm UI, there is lots of data, so we are not able to track exact data for analysis, which is why we use Nagios [Core].
    Read full review
    Paessler
    PRTG offers more versatility in monitoring when compared to the other solutions we tested. The other solutions were also limited as far as customization options, which made them less adaptable to our networks. When compared to Auvik, for instance, we prefer PRTG as it offers immediate notifications through the desktop client - not limited to email notifications as with Auvik. We also appreciate the fact that PRTG can be self/on-prem hosted vs Auvik's cloud model. This makes for an easier deployment and less firewall adjustments to allow traffic to cloud-hosted solutions.
    Incentivized
    Read full review
    Return on Investment
    Nagios Enterprises
    • 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.
    Incentivized
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    Paessler
    • The ability to analyze multiple pieces of information in one place, especially with historical data, has saved our IT department time and headaches. It would be so much more difficult to trace an issue without PRTG, just relying on event logs and an open task manager window.
    • The cost is not cheap, so it's an expense that hits the bottom line like everything else. Figure in hardware costs as well, ideally a server outside of your main environment.
    • I keep saying this, but the historical data piece is worth so much. There's really no good way to collect all of that information in one place without something like PRTG. And that definitely saves time and money in the long run.
    Incentivized
    Read full review
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