PRTG vs Nagios

PRTG and Nagios are two of the most commonly compared monitoring solution for years. Both of them are not new and have been there longer than their many rivals. PRTG and Nagios can be used for free especially Nagios. However, one of them is easier to use and simplify the monitoring process while the other might times to be assembled. If you want to know more about them, go ahead and read our article below.

In this article, we are going to give you information about:
– What is PRTG and Nagios
– What PRTG and Nagios can offer to you
– PRTG vs Nagios

About PRTG
PRTG is a Network Monitoring software developed by Paessler AG. This software is claimed to be able to handle everything including monitoring all systems, devices, traffic and applications of their users IT infrastructure. Similar to other similar software, PRTG is used to identify problems before they change into faults and affect your business by reporting those problems to administrator, so they can fix it faster and avoid unwanted occurrences. PRTG is very popular and have gotten good reviews from many big sites including pcmag, techradar, and itbrief.

PRTG Pricing
PRTG do offer free trial that you can check on their homepage for small businesses for up to 30 days with unlimited sensors. After the free trial period end, users can use the software for free forever but the sensor is limited to only 100 count. Sensor is the aspects that needed to be monitored on a device, such as a specific URL, traffic of a network connection, a port of a switch, and the CPU load machine. There are hundreds of sensors that can be monitored by PRTG and you can check all of them in Paessler site. If you think you need more sensors, you are always able to upgrade your license. Paessler currently offer 6 levels of license start form $1600 to cover 500 sensors and XL5 that cost $60000 for big companies to cover unlimited sensors and allow up to 5 core server installations.

PRTG Features
PRTG have 10 built in technologies to gives you flexible alert like emails, play alarm audio files, push or triggering HTTP requests. When used on premise it also support SMS text messages and executive EXE files. Even when you are not in front of your monitor, you can still get updates with push notifications. Users may also write their own notifications using PRTG API. For the user interface, you can use three kind of interface simultaneously; AJAX Web Interface to configure devices and sensors as well as reviewing your monitor results, Enterprise Console to review data from PRTG on-premises installation as a glance, and Mobile Apps to let you stay up to date even when away from your desk.

If you decide to use PRTG on premises, you will get a single failover by clustering in the license. RPTG cluster contains 2 or more installations that will work together and just in case the primary master of the cluster in not connected or down, the other node will quickly takes over all responsibilities including sending you the notifications. Maps and Dashboards are customizable with PRTG map designer that contains more than 300 different map objects to visualize your network with live status information. You can export the historic monitoring data in various file type, such as PDF and HTML and you also may run reports on demand or schedule regular reports.

About Nagios
Nagios is an open source computer software that serves the purpose of monitoring systems, networks and infrastructure. Nagios actually have other softwares, but the most famous is the free Nagios Core, which is their primary application to serve the purpose as monitor and alerting engine. Other softwares by Nagios are Nagios XI, Nagios Log Server, Nagios Network Analyzer, and Nagios Fusion, which a combination of XI and core to provide you with centralized network view. Other popular software aside Core is the XI, which based on Core. Nagios XI is claimed to be the software you need to monitor all of your mission critical infrastructure components on any operating system.

About Nagios Core
In this article we are only going to talk about Nagios Core, since this is indeed the core of Nagios softwares. This software has main purposes as the basic event scheduler, event processor, and alert manager for elements that it can monitor. Nagios Core comes with several API that can be used to enhance its capabilities to perform additional tasks, which is implemented as a daemon written in C for performance reasons.

Nagios Core Features
Nagios Core is designed with an architecture that focused on flexibility and scalability by providing several APIs to allow it to be easily expanded utilizing additional addons, which have lead into numerous creation of addon projects to expand its core feature set further. Nagios Core has default CGI interface to provide you with the basic functionality that is required to view and manage elements monitored by Nagios Core.

This software scope is mainly focused on the duties of check scheduling, check execution, check processing, event handling, and alerting. Tasks, such as performing checks, sending notifications, processing performance data and many others cant be done by Nagios Core and usually handled by other Nagios projects. You can enrich the features in Nagios Core by installing many addons, so the software can perform tasks that formerly can’t be done by itself, such as configuration frontends, performance graphing, auto-discovery, and distributed monitoring.

Now, lets compare PRTG and Nagios Core. PRTG have automatic network discovery, mapping and topology diagrams, while in Nagios Core you have to install addons first. PRTG able to do WiFi, QOS and IP SLA monitoring while with Nagios Core you will need a plugin. PRTG is able to do printer monitoring while Nagios Core will need a plugin. PRTG also able to do active directory domain monitoring, Vmware, and Hyper-V monitoring, while the other still need plugins.

PRTG vs Nagios

- Free until 100 sensors- The Core project is completely free
- Doesn’t need additional addon or plugin- Need additional addons and plugins to extend its abilities
- Easier to use compared to Nagios Core- You have to do more jobs before it can work the way you want

All in all, the decision is all yours to make. We can see that Nagios Core does need additional jobs to provide you with some features. If you are the type who prefer or enjoy manually configuring scripts and config files, then Nagios Core is for you. But, if you prefer things the easy way, we highly recommend you PRTG.

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