It's got very nice tools. We have notifications via email or short messages via SMS.

It's great for monitoring IT services infrastructure. You can monitor all your servers, your database, and server virtualization. 

I don't have any problem with the Nagios XI. It's the best. 

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It's a monitoring agent. It's designed to do one thing. Its most valuable feature is its monitoring.

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The most valuable feature of Nagios XI is customization. We can customize based on our requirements. We can do modifications and implement a lot of scripts. Additionally, it is easy to use.

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The solution's most valuable feature is its simplicity. The solution is easy to use, start working with, administer, and install.

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BPI: It allows defining peripherals to map business criticality for efficient monitoring, as required.

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Nagios XI helps us monitor the bandwidth of the internet connection, HTTP, DNS, active directory services, and exchange data availability. We have multiple servers to monitor databases, availability of servers, and ping. SMTP services can be monitored with Nagios XI. We use Nagios' mail features to send email alerts to the IT team to let them know we have an issue on our server, a problem with the databases, or updates about the availability of a server.

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The most valuable features are the product's flexibility and the daily and monthly availability reports.

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It's easy to use. You provide what you want and you can monitor what you really want. 

As long as you develop your own codes, it is fine. 

The initial setup is straightforward. 

The solution is pretty stable.

Technical support is helpful. 

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The most valuable feature is the setup wizard. The wizard just asks you for simple details and automatically starts collecting logs. It will give you some hints to configure your login on remote devices.

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This solution is very good for monitoring infrastructure. It is simply to use, and you can receive notifications by email.

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The solution has a lot of plugins and scripts integrated with it. It is very good for monitoring.

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The most valuable feature is the monitoring of processes.

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All of them, but mainly: 

• Highly-efficient server performance monitoring engine
• Configuration wizards
• Infrastructure management
• Configuration snapshot.

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Nagios is stable and it's easy to use the monitoring software, which is why we chose this product. There is no limitation exist to monitor every measurable parameters and KPIs. Every known devices and services parameters has own plugins in this monitoring system and for special cases, it`s possible to write script and monitor results.

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The most valuable feature is the dashboard, where I can have a single screen that provides a summary for hundreds of servers. I get red and green indicators that help me to quickly check for and rectify problems.

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Network monitoring and topology: Network monitoring and topology are important for my job rules, because I'm a system and network administrator. I need to have information in real-time about the topology of the network and monitoring of the switches, routers, and servers.

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Though I downplayed the administrative NCC GUI, this is by far the strongest aspect of the Nagios XI product. In my early days of exposure to Nagios, I was using the Nagios Core product which was configured by manually editing system configuration files and then performing a system configuration verification step. This was a very cumbersome method of configuration of the respective Nagios functions. It was like the old days of software compilers where one would troubleshoot a code set by trial and error, solving source-code issues one error at a time. This was an exacting approach for Nagios system configuration, but very slow.

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I think that the most important feature of Nagios is that you can write your own plugin, so you are able to create your monitoring system based on what you need.

For example, I'm using a backup system that writes in a file when it's done. If this file is empty it means that the backup fails: well i've written a Nagios plugin to check this so i can be sure if a backup is ok or not.

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The product for which Nagios was used to monitor was:

• Brightmail back-end 7/24 Operation
• Brightmail heuristics engine and development infrastructure

The ability to write your own plugins is the most valuable feature, but also it's nice that you can rudimentary monitoring primarily for Linux systems right out of the box.

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Nagios can be installed on a server with very low specifications, our main server has 512 MB RAM and 1 processor.As the open source version does not provide a configuration interface, for those who need easy administration of Hosts and services - it can be integrated into other web applications such as NagiosQL (Personal favourite) with a database back-end to store configuration in the case of failure.There are many plugins we use on our desktops such as Nagstatus and Nagstatmon which provide us with real time monitoring results instead of sending out E-Mail alerts, Instant messages etc.We currently monitor all our servers using SNMP just to avoid installing apps like NSClient to keep monitoring simple and clean. View full review »

The most valuable features of Nagios XI are you can customize it based on your use case and requirements. It is flexible and easy to integrate with our systems. You can customize the solution by adding additional features using code.

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Nagios enables you to choose to have either a single server structure or multi server net. This helps you get the best optimization in a non-local datacenters, or remote servers on subnetworks.

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Nagios is an open source monitoring tool for monitoring network services. Installation is quite easy and the interface is user-friendly and configurable. We can monitor disk space, CPU utilization, memory usage, host availability, NFS availability and a lot of other things. Due to its extensive features, it is widely used in IT markets.

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Nagios XI has a custom API feature, and we can expose custom APIs for our integration. This is a great feature.

In fact, Nagios XI grant access to administrator to use official common backend commands and callback functions developed by Nagios in custom APIs, so custom APIs could be created as an standard web services without degradation in performance and access to needed data easily. This APIs will be registered and listed in Component Management and administrator could be able to manage them as well. Also, Authentication will be done by creating unique Token for each user created in Nagios XI User Management automatically and it could be used in calling each APIs to manage access level of caller user.

All documentation and examples about creating custom APIs are available in "Help" tab in monitoring GUI and each person with moderate level of knowledge about development in PHP language  (Needless to say it required admin privilege), can create this kind of web services. 

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• The integration with the alerting software 
• Automated maintenance windows 
• The ability to set up templates and groups of checks, as well as customize the checks themselves.

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We must separate the 2 parts of this product :

Monitoring Core (Nagios Core) -

Possibilities to manage Nagios Core and Nagios Client configurations by Service Manager like Ansible, Puppet etc. For big environment's, it's the simplest way for industrialisation

Interface (Nagios XI) -

• Correct and scalable Dashboards for management
• Easy way to view you entire production ( more complete than Nagios Core interface)

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The community, Nagios XI is made on Nagios Core base, and the community makes plugins on almost any language of programming. Nagios is not owned by any brand.

The second feature is Nagios is very friendly, if you can customize the tool to the specific environment.

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• Alerting with SMS and e-mail
• Monitoring services on hardware status

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The most useful aspect of this solution is the ability to customize it for the client agent.

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Since this is an open source technology, if we are capable of writing the plugins in any scripting language, this product allows us to monitor anything we want.

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The High Availablity feature is the most important. I have not seen Nagios crash during the last three years. The Script Module in Nagios is really easy to use and is really cost efficient.

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• Monitoring Engine gives an in-depth dashboard of all the systems configured for monitoring
• Capacity Planning shows the capacity trends of all the systems which enables you to plan appropriately for your needs
• It has a good reporting tool and alert system

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The monitoring and notification when an issue arises.

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There are a lot of plugins available and you can also write your own.

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It is an open-source platform with valuable features for performance and stability.

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The main characteristic I adore is the open source character of it. You want to monitor a specific metric that nobody else has? You can do it even with the most basic of scripting skills, and you can always share it with the vast community of Nagios Exchange.

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It has a wide variety of plugins in existence, but when there's no plugin available it is quite simple to integrate one's own programs and scripts.

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It has a lot of flexibility for customization and a wide range of metrics. Also, it is opensource and has a big community.

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In my experience with Nagios, I've found that the most valuable features are the scalability and extensibility through using scripts. It's easy to customize, and Nagios makes it easy to use languages you're already familiar with such as Bash/Python

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It's ability to monitor a good range of services out of the box and it's extensibility with the use of plug-ins, with an active user community sharing community contributed plug-ins to cover monitoring for a very wide range of services and components.

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The most valuable feature is its support for different types of devices, where it can use all of the equipment that you need. You can find and change your speed in the network topology, and if something goes down then it will be noticed immediately.

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The features I've found the most useful are the plug-ins, the fact that you can connect almost everything to it. That's very useful.

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The dashboard allows you to see what's going on in the overall system.

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It's simple and has easily understandable monitoring concepts that have been largely adopted by the community.

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Simplicity of configuration. I can set up configuration of 100 devices with about 10 services in one to two days.

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It has a web front end and the Dashboards are really easy to customize.

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• Real Time Alerts
• Network Map

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We love Nagios XI due to the fact that JPS Web is very useful. JPS monitors the modem and performs switching, monitoring the computer, and performing switching. We implement some applications and traffic monitoring. The alerting system is very effective. For instance, if we have an alarm on some RAM storage if the traffic is cut or dropped.

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