Let a monitoring tool like Nagios handle it for you. It is time-wasting to put your eyes on server all time just to check that it’s up. So to know that a problem has occurred, you should always be in front of the system and monitor it yourself. But problems occur and your server may go down because of an automatic update. Let’s say you setup a web server and want to make sure that it is always up. A monitoring tool is helpful when you do not want to waste your time to manually check your devices, ports, or services running on those ports. It should not be difficult to understand why we need a monitoring tool. Nagios is a monitoring solution that can monitor a few devices in your house or hundreds of devices, services, network protocols in a multi-billion company.įirst of all, why do we need Nagios or any monitoring tool at all? Have you ever thought about how some of the World’s biggest companies monitor hundreds of devices? If not, then do it now because, in this tutorial, I am going to introduce you to Nagios.
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