Ntopng threshold alert5/29/2023 ![]() ![]() One way for achieving this is, for instance, running a shell script or calling a web-hook. In ntopng it is possible to automatically react to events like alerts generated by the Active Monitoring and run custom action. It is possible to fix the service with a task which is easy to automate (e.g.It may be we are away, busy, or even sleeping and not able to react at all.A manual reaction to the notification may take time.In some case, we can do something better than just getting notified (actionable results), because: Then we need to create a recipient for delivering alerts generated by the Active Monitoring support from the Notifications -> Recipient page, where we specify which alerts we want to receive, filtering them by Severity, Category, Entity, and finally the Active Monitoring entries that we want to monitor. First of all we should create a new endpoint from the Notifications -> Endpoint page, where we specify the endpoint type (Telegram) and the required parameters. messaging systems) supported by ntopng, we can go and configure this from the Notifications page.įor instance, let’s assume that we want to receive a message on Telegram on our mobile phone. If we want to get notified through some of the endpoints (e.g. Those alerts are visible under the Alerts -> Explorer -> Active Monitoring page. Select the measurement, the host/service to check and a reasonable threshold that should not be exceeded if the service is operationalĪt this point ntopng will periodically check the measure, and trigger an alert in case of failure.Go to the Monitoring -> Active Monitoring page from the sidebar.Select the System interface from the drop down at the top of each page.React (Automatically) with some custom action, for instance running a script, when a service goes down, to restore it.Īs we have seen in a few previous posts, adding a new service to be monitored is easy:.Get notified when a measure is failing or the result is not satisfying a threshold, by triggering an alert.Monitor the status of the services over time, by looking at the table in the Active Monitoring page which contains all the measurements.Throughout, which tests the throughput contacting an HTTP server.HTTP(S), which checks the HTTP/HTTPS availability of web servers.Speedtest, which estimates the Internet bandwidth and latency contacting a speedtest server.Continuous ICMP, which evaluates network reachability and service availability.ICMP, which measures the RTT (Round Trip Time). ![]() Almost 3 years ago we introduced Active Monitoring support in ntopng. This allows you to monitor the infrastructure and make sure that all systems are operational. In fact ntopng can continuously monitor hosts in your network by periodically running different active measurements including: ![]()
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