--- title: "Nagios XI Reviews 2026. Verified Reviews, Pros & Cons | Capterra" description: "Is Nagios XI the right Network Monitoring solution for you? Explore 46 verified user reviews from people in industries like yours to make a confident choice." source_url: "https://www.capterra.com/p/152793/Nagios-XI/reviews/" page_type: "reviews" language: "en" publication_date: "2026-10-21" --- Nagios XI 4.6 (45) [View alternatives](https://www.capterra.com/p/152793/Nagios-XI/alternatives/) Provider data verified by our Software Research team, and reviews moderated by our Reviews Verification team. [Learn more](https://www.capterra.com/our-story/) * * * Last updated October 21st, 2026 # Reviews of Nagios XI Ease of use 4.2 Customer Service 4.0 ## Pros and Cons in Reviews DL Drew L SR SYS AdminConsumer Goods, 201 - 500 employeesUsed the software for: 1-2 years. “Having used Nagios XI in past infrastructure setups, it proved to be a dependable, industrial-strength monitoring solution for on-premise and hybrid server environments. While the initial setup and configuration require a dedicated time investment to get everything dialed in, the performance and stability were consistent once running.“ August 5, 2026 DL Drew L SR SYS AdminConsumer Goods, 201 - 500 employeesUsed the software for: 1-2 years. “The plugin ecosystem is massive—if you need to monitor a specific metric or legacy system, there's almost certainly an existing plugin or a straightforward way to write a custom script for it.“ August 5, 2026 DL Drew L SR SYS AdminConsumer Goods, 201 - 500 employeesUsed the software for: 1-2 years. “Customer support is solid if you have an issue.“ August 5, 2026 CH Cody H Account ManagerComputer Software, 201 - 500 employeesUsed the software for: 1-2 years. “Easy to setup, secure, solid functionally and notification options.“ May 19, 2022 ## Showing most helpful reviews Showing 1-25 of 45 available reviews Sort by: Most Helpful Rating Company Size Reviewer's Role Length of Use Frequency of Use DL Drew L. SR SYS Admin Used the software for: 1-3 years ### "Let's Find Stuff - With Nagios!" August 6, 2026 5.0 Having used Nagios XI in past infrastructure setups, it proved to be a dependable, industrial-strength monitoring solution for on-premise and hybrid server environments. While the initial setup and configuration require a dedicated time investment to get everything dialed in, the performance and stability were consistent once running. It is a great fit for IT teams that need deep, granular control over their monitoring parameters and prefer a proven platform over lightweight SaaS alternatives. Pros The sheer visibility and depth of customization you get across servers, network devices, and applications is top-notch. Nagios XI makes managing host configurations much easier than Nagios Core thanks to its web interface, configuration wizards, and pre-built dashboards. The plugin ecosystem is massive—if you need to monitor a specific metric or legacy system, there's almost certainly an existing plugin or a straightforward way to write a custom script for it. The alerting mechanism is rock solid once properly tuned. Customer support is solid if you have an issue. Regular patching and updates occur. Performs well, and is super speedy! Cons The UI/UX feels a bit dated compared to modern SaaS observability platforms, and setting up complex host groups or fine-tuning thresholds can take a significant amount of manual effort upfront. If you don't spend the time tuning your notification rules early on, you can easily get buried in alert fatigue. The pricing structure can also get steep quickly as your host count scales up. Review Source R Reviewer Manager of UNIX Systems Used the software for: 3-5 years ### "Nagios XI: capable, flexible, but occasionally frustrating" April 21, 2026 4.0 Nagios XI has stood us in very good stead at both my current and former employer - just about 20 years now - where teams I was part of leveraged it extensively for AIX and Linux monitoring. The core functionality is pretty much what you expect from a commonplace monitoring platform (e.g. OK/Warn/Crit alert thresholds, configurable polling intervals and notification lists, etc), but with some additional benefits that are quite useful (intelligent use of groups/templates, change management, storing of historical data with excellent interactive graphs). However, the experience is marred by some "quirks," like the way that historical data is stored in RRD files being difficult to maintain (adding and removing data elements like disks or filesystems breaks it), and the fact that email notifications are sent separately per contact (so if you use distribution lists and a person is on more than one of them, they get multiple emails). On the whole, having taken the time to learn our way around Nagios XI and customize it to our needs, it's been enormously useful - but it definitely required that investment to create find workarounds to its little oddities and create our own custom monitoring scripts. Pros Nagios is extremely flexible and easy to implement - a great solution for those who can or need to create a tailor-made monitoring platform. Cons Nagios XI grew out of the shareware space where it was often used for zero-cost Linux monitoring, and though XI comes with Support and a few more bells and whistles, it still shows its roots. Out of the box monitoring options are not as comprehensive as some other platforms (dropping AIX , and the core functionality of the platform can be rather "quirky" at times. Review Source Prashant D. Devops Engineer Used the software for: 3-5 years ### "Simple and Outbox IT Infrastructure Monitoring Tool" April 4, 2023 5.0 Pros Nagios provide a centralized view of system status and provide alerts when issue arise over mail and sms.It supports multiple plugins and extensions with the help of plugins we can monitor server, application, databases, network devices and store their trends. It can also escalate alerts to multiple users or groups based on specific criteria. Cons Not facing any issue yet,easy to use and maintain. Review Source Irfan Ahmed M. Deputy Manager Used the software for: 3-5 years ### "Monitoring Large scale Network at a glance." March 5, 2020 5.0 our large scale network and different network devices we are unable to monitor and resolve network based problems timely and devices are increase time by time. due to avoid network failure and need notifications of downtime we study and installed Nagios XI and other solution in our Infrastructure. Pros Open source and easy to configure easy to customized Notification/Alert in case of any failure. work on SNMP Protocol free add-ons to download and develop your customization Cons License cost is very high Interface is create confusing ( in Free Version ) Issue in monitoring in network throughput (bandwidth user wise ) Only monitoring tool , configuration are not allowed. Review Source R Reviewer DevOps Used the software for: Less than 1 year ### "Nagios XI Basic - One stop solution for monitoring" January 16, 2023 4.0 Nagios XI was easy to setup (from the tools we tested), although it has many plugins you can always and easily create your own plugin (anything that is measurable), it has good alerting system when it comes to emails, seems like the GUI/UX could have been more modern but overall experience is very good. Pros I really liked the easy setup and the fact that it's a one stop solution with the amount of available plugins Cons For certain configuration you need to read the manual doesn't seem to be trivial titles. Also the wizards have good defaults but there should be an easier way for customization Review Source pK pavan K. Project manager Used the software for: Less than 1 year ### "Excellent Product " June 26, 2020 4.0 Good product and value for money. ROI from day one. Pros Value for money, easily availablity of pluggins and more stable product Cons Improved UI and more user friendly console Review Source R Reviewer Business Analyst Used the software for: 1-3 years ### "A powerful monitoring solution " May 16, 2019 5.0 Nagios XI is a powerful server and network monitoring solution. The automation monitoring provides the continuous feedback about the product and infrastructure which help in enhancing the product quality. The advance user interface help in analysis and administration. Pros Nagios XI provide a complete monitoring solution for any kind of server, application, web-service or network. User interface is easy to understand and simple to customize the layout or design for each user's priority. Nagios XI monitoring host fetch the quick data from nodes and GUI interact the data into the useful information. Configuration wizards simplify the setup process for new nodes monitoring. Integrated nodes trigger the notification if it needs to increase the capacity of the system. Configuration snapshot helps in saving the day in case of new check-in messed it up and you need a immediate rollback to the last working stage. Cons Schedule Reports are limited to enterprise but in case of Standard edition we need to setup the jobs to generate the schedule reports. Advance reporting should have some bulk server options. Monitoring of sensitive data like certificate expiry should have some simple wizards as configuring the web-service and then monitoring the certificate is a long process such need to be simplified. Review Source Sergey M. Manager, Technology Infrastructure and Compliance Used the software for: 3-5 years ### "Entire network at your fingertips" August 24, 2018 5.0 Great product. Not only I learned something new, I was also able to impress the management with the results of this $0 product. Pros I implemented a free version of the application to monitor my complex network, spreadout across multiple locations. While it took me several attempts to get it right, once installed, I was pleasanty surprised with what I saw. Having my network distributed across multiple locations, it was hard to monitor the upstate / resources of my servers and other network devices. Once I configure Nagious to my liking, I had every network device that I wanted to monitor on the consolidated map. Very simple configuration of the config files, once you get an idea of how to work them. Really great result for a free product Cons Being a Linux newbie, it did take me some poking around, before I got it right. You really have to understand the structure of the product and Linux OS itself to get it right. Config files were confusing at first, but once I figured them out, it was a breeze to add / remove hosts. Review Source Abhinav K. Sr Software Integrator Used the software for: 1-3 years ### "The IT monitoring tool for faults detection." March 26, 2019 5.0 Nagios XI is helping us to do the monitoring completely automatic. The advance dashboard and admin dashboard designed so well and easy to configure as per each user need. The scheduled managed report help in to scaling up the capacity planning of the infrastructure. Nagios XI is providing the complete and comprehensive IT infrastructure monitoring to many of our projects and help us to deliver the project faster and more efficient way. Pros Nagios XI is a powerful monitoring tool for faults detection which provide the notification via push, email or SMS. Nagios XI allows us to rollback the configuration on the last working stage in case of fault detection. The new wizard is easy and provide multiple option at the time of setup. Nagios XI have an exclusive feature of bulk modification of attributes which help in to monitoring the same set on monitoring module on newly setup environment. Audit trails feature allow to scrutinize the modification or setup. Cons Mobile interface is newly develop and need more development, it should provide more option for audit log and add more detail for configuration rollback option. Scheduled report should be included in standard edition. Review Source R Reviewer Responsable Systèmes d’information Used the software for: 3-5 years ### "Essentiel dans un service IT" August 12, 2025 4.0 Je démarre mon Dashboard tous les matins, et si tout est vert je passe à des taches plus importantes, top ! Pros L’utilisation au quotidien, une fois le tout bien parametré, est un vrai gain de temps, et permet de se concentrer sur d’autre chose que la surveillance. L’info n’est plus à aller chercher, elle vient à vous si besoin. Cons Comme tous les logiciels paramètrables ou personnalisables, là encore il peut être complexe de trouver, ou adapter des plugin compatible avec votre matériel et votre besoin. Review Source R Reviewer University Professor in Telecommunications Enginee Used the software for: 3-5 years ### "It has proven to be a great business solution for monitoring and alerting critical problems." May 23, 2018 4.0 Pros \- Ease to see the incidents in the network and solve them before they become big problems. - Provides users with effective and scalable monitoring, which makes a big difference compared to other tools. - In our Lab practices the configuration of remote access of users to any device through RDP, VNC, Telnet or SSH has been done very easily. - Multi-user access to the web interface ensures that the components of the infrastructure for which they are authorized can be viewed. Cons \- Although it belongs to a large community, sometimes it is not easy to understand the support of some scripts. - Regarding the issue of vulnerabilities are always present in the different updates. Review Source R Reviewer Network Admistrator Used the software for: 3-5 years ### "It is a very simple tool to use, and very complete .." March 5, 2018 5.0 It allows me to monitor network equipment and be alert to any fall Pros Allows me to monitor many network devices, such as switch, router among others, even servers, The web map interface is very intuitive Cons It is a bit difficult to configure, but once configured it works very well, the web interface on mobile phones is very incomplete Review Source R Reviewer IT Used the software for: Less than 1 year ### "NagiosXI" November 25, 2019 4.0 It makes my life easy in case of system/network problems. Pros This monitoring tool is splendid to visualise the network topology to monitor. You can easily see which equipment has the problem. Cons If there is no wizard to monitor a host or service, it requires deep knowledge to configure the system Review Source Verified Reviewer CTO Used the software for: 1-3 years ### "Eficiente para una monitorización básica, aunque con margen de mejora" January 29, 2025 4.0 He utilizado Nagios XI como herramienta de monitorización en un entorno con pocos servidores para supervisar parámetros clave como el uso de CPU, memoria y espacio en disco. Mi experiencia ha sido positiva en términos de fiabilidad y efectividad para tareas básicas, aunque la configuración inicial me llevó algo de tiempo y paciencia. Pros Me ha gustado su flexibilidad, ya que permite una amplia personalización con plugins y scripts para adaptarse a necesidades específicas. También me gusta su capacidad para definir alertas. Su sistema de notificaciones es fiable y puede integrarse con múltiples canales de comunicación. Permite la opción gratuita para 7 servidores. Cons La Interfaz de usuario, aunque funcional, su diseño es poco intuitivo y podría mejorarse en términos de usabilidad. La curva de aprendizaje, ya que requiere un nivel técnico medio para configuraciones avanzadas, lo que puede ser un obstáculo para usuarios nuevos. Review Source Verified Reviewer Engineer Used the software for: Less than 1 year ### "Very nice tool for network monitoring" February 7, 2025 4.0 Pros Nagios XI is a very complet tool for monitoring computer networks. Cons Nagios XI can be quite complex to set up the first time you use it. Review Source R Reviewer Software Engineer Used the software for: Less than 1 year ### "Nagios XI - The Open Source Enterprise level Network Monitoring Tool." January 7, 2019 5.0 Nagios Xi web interface user friendly. It allows us to keep the eyes on the complete infrastructure run without any bug as it helps us to identify the failures and also identify the cause of the failure. Configuration snapshot is also helpful to clone the configuration monitoring settings. Pros Nagios XI is an Enterprise level monitoring tool as it helps in monitoring the service, infrastructure and network. Powerful dashboard provides all the information at the one place which helps us to monitor the infrastructure. Security can be set on the muti-level users, as it allows the client to view the required components for which they are authorized. The GUI is also very user friendly. Customization wizards is also easy and layout can be configured according to the need of the infrastructure. Cons Master Node is configurable on LINUX platform only. So this makes it necessary to learn LINUX for team that will setup and implement it. Once the slave nodes are 80+ it makes the Nagios XI interface slow. The Mobile interface also needs more enhancements in it. Upgrading the advance version is also complex and pre planning and backups are also required for the cases. Review Source R Reviewer Support iT Used the software for: 1-3 years ### "Etude sur Najios" April 16, 2023 4.0 Supervision en temps reelles des servers, RAM DISQUE DUR PROCESSEUR Etat actif ou eteint les alertes Pros Son interface graphique , simple, agreable, son monitoring reseau Cons configuration pas facile, prix couteux, Review Source R Reviewer DevOps Used the software for: Less than 1 year ### "Monitoring essentials out of the box" May 25, 2023 4.0 The experience is positive for the most part could use more plugins and a better way to set users on specific notofication alerts. Pros Unbosrding is fast and easy. Out of the box default monitoring metrics are really what you need to get started, they have a handful of ready to use plugins and in any other case you could build your own custom plugin real easy. Cons The GUI doesn't seem to be most updated and some of the features are hard to find (UX issue) Review Source R Reviewer Ingeniero de sistemas Used the software for: 3-5 years ### "allows us to monitor the network equipment and help us know in real time when a fault occurs" April 17, 2018 4.0 Pros It allows you to monitor many network devices, such as switches, routers, servers, helping to monitor network performance and track traffic on the network interface. very easy to install on a server, the interface is very intuitive, and has a variety of customization options since Nagios is an open source software which makes it easy to add custom scripts to extend the available services. Cons It is a bit difficult to configure, but once configured works very well, it continues to use add-ons that in some cases work perfectly but others are painful to work, the interface is a bit slow when you have many clients on the network, and the Search is very precise and does not look for possible matches. Review Source Umair Ali K. Sr. Network Administrator Used the software for: 1-3 years ### "Complete Monitoring system" January 15, 2021 5.0 it has been a critical part of our organization and has never let us down. Pros Nagios XI is the only NMS being used in our infrastructure for monitoring LAN, WLAN, WAN, Virtual infrastructure and physical servers. it supports almost all endpoint types and monitoring protocols. it has built in templates for popular endpoints which makes it very easy to add them. Cons the reporting feature has limited templates and they cannot be edited. you can create new templates but they also have limitations. some reports cannot be run on groups of devices while others show very little information. Review Source Mike .. Mission Critical Engineer Used the software for: 1-3 years ### "Highly customizable monitoring" April 2, 2024 5.0 Pros The ability to extend monitoring to custom monitors Cons A steep learning curve to use portions of the product Review Source Verified Reviewer Service Desk Supervisor Used the software for: 3-5 years ### "Nagio XI makes Nagios SO much better" June 21, 2018 5.0 The best benefit is the ability to create a monitor in a GUI rather than a command line. Pros I really like the graphical user interface overlay on top of Nagios Core, it makes it so much easier to create monitors. Cons The only complaint I have with Nagios XI is not with the software but instead with the way that people do not take ownership for the monitors that they create. The software works great when done right. Review Source R Reviewer AGM Used the software for: 3-5 years ### "Good steady monitoring tool" July 30, 2021 4.0 Pros The tool is simple to use and easy to deploy. Does it's job of performing good monitoring for network devices specially. Helpful in quick identification of issues and bottlenecks and help reduce MTTR Cons Certain features doesn't help you get down to the root-cause of the issues and investigation has to be done outside the tool. Review Source Nebojsa P. Network Coordinator Used the software for: 3-5 years ### "Network monitor for everyone" August 16, 2021 5.0 This a great software for networks monitoring, which bring information on daily basis. Pros The web inteface that includes and well designed dashboard, shows all events that happen on the network and loggs them at the same time. Capable of reading advanced information from many devices. Cons The intial configuration is time consuming, together with a need of many interventions. Review Source Verified Reviewer Senior Cloud Engineer Used the software for: 3-5 years ### "Old Monitoring solution" October 1, 2019 4.0 Been using this to monitor our infrastructure​ but now we are looking for something new Pros We purchased this many years ago to monitor our infrastructure and it started off well Cons We found this solution very difficult to set up​ and their support was not much help. Review Source Similar Products Featured ## Send me user reviews about this product ### Fill out the form and we'll send a list of the top-rated software based on real user reviews directly to your inbox.