Out of the box, Nagios is not great – text-based configuration coupled with an outdated web interface (for monitoring). However, once you get past that and become familiar with the system, you can unlock the great power available in Nagios. This can take some time to get used to resulting in a steep learning curve and thus, reduces its attractiveness to new users. adding hosts and services to be monitored) for Nagios is done through text files. Since this article is about open source monitors, we will focus on Nagios Core.īy default, all the configuration (e.g. Note: Nagios comes in two flavours: Nagios Core (which is free and open source) and Nagios XI (paid Enterprise edition). In fact, the company behind Nagios calls it the “Industry Standard In IT Infrastructure Monitoring”. The best way to describe Nagios is the grandfather of network monitors because it has been around for so long (18 years). We will be discussing some of the most widely used tools in the windows/linux monitoring realm, looking at their characteristics and comparisons, to help you make a decision on which one is best for you. Network monitoring tools can be categorized in several ways, from those that only work on Windows systems to those that require a paid license to operate.įor the purposes of this article, we will focus on open source (usually free) network monitoring tools that operate on Linux/Unix systems, although some of them have Windows versions available. Different tools have varying level of reporting capability. Reports are not only important for administrators but also for management. Such information is best displayed in graphs and most monitoring tools provide various graphs for monitored parameters. Knowing the current status of a resource is good but even more beneficial is being able to see that status over time. Event Log Monitoring and Alerts could be sent via SMS, Email, etc. Some tools are able to send alerts when an event occurs. availability (up/down status), CPU usage, etc. The tool should provide a means of viewing the status of monitored resources e.g. Generally speaking, there are a couple of things that network monitoring tools will/should provide for you:Īt the minimum, Windows or Linux network monitoring software will provide a way to add the hosts and services to be monitored. While it is possible to manually monitor a network (depending on the size of the network and how critical the resources on the network are), you will probably be better off using tools specifically designed for such a purpose. Here's a List of the Top Open-Source Network Monitoring Tools of 2022: This provides proactive management rather than reacting to issues as they happen. Network Monitoring gives administrators a clear view of the devices, services, applications running on their network and the opportunity to track the availability/performance of these resources. No matter the case, one thing that becomes quickly apparent is that there is a need to make sure the network is operating as it should and one of the ways to ensure that is Monitoring. You may have been involved in the design and implementation of a network or maybe you came on-board after the network had been built.
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