Monitoring

In this tutorial, you will learn how to configure Prometheus Email alerting with AlertManager. AlertManager is used to handle alerts sent by client applications such as the Prometheus server. It takes care of deduplicating, grouping, and routing them to the correct receiver integration such as email, PagerDuty, or OpsGenie. It also takes care of silencing and inhibition of alerts. Configure...

In this tutorial, you will learn how to configure Grafana Email alerting. Grafana alerting allows you to attach rules to your dashboard panels. When you save the dashboard, Grafana extracts the alert rules into a separate alert rule storage and schedules them for evaluation. When an alert changes state, it sends out notifications through various channels including Email, Slack,...

In this tutorial, you will learn how to monitor SSL/TLS certificate expiry with Prometheus and Grafana. Well, with the assumption that you are already aware about the implications of an expired SSL/TLS certificate, we will be discussing how to monitor SSL/TLS certificates to avoid encountering such issues. Monitor SSL/TLS Certificate Expiry with Prometheus and Grafana Note that, in this setup, we...

In this guide, we are going to learn how to install Prometheus on Debian 10. Prometheus is an open-source systems and service monitoring system. It collects metrics from configured targets via HTTP calls at given intervals, evaluates rule expressions, displays the results, and can trigger alerts if some conditions are met. Install Prometheus on Debian 10 Prometheus is made up various components; The main Prometheus...

In this tutorial, you will learn how to install latest Grafana on Debian 10. Grafana is an open source analytics and monitoring solution that enables you to query, visualize and alert on various systems metrics that can be pulled from various time series databases such as Graphite, InfluxDB & Prometheus etc. Install latest Grafana on Debian 10 There are various methods in...

In this tutorial, you will learn how to forward Apache logs to central log server with rsyslog. Apache do not log to syslog by default. So, what if you want to forward them logs to central system where you can easily manage them? In that case, there are various tools which can be used to read and...

In this tutorial, you will learn how to install Fleet osquery manager on Debian 10. With the official retirement of the Kolide Fleet as on November 4th, 2020, there has been yet another Fleet that offers the same functionality as Kolide Fleet. According to its Github repository, "Fleet is the most widely used open source osquery manager. Deploying osquery...

In this tutorial, you will learn how to add or enroll Osquery hosts on Fleet manager. Fleet is the most widely used open source osquery manager. Deploying osquery with Fleet enables programmable live queries, streaming logs, and effective management of osquery across 50,000+ servers, containers, and laptops. It’s especially useful for talking to multiple devices at the same time.“ In...

In this tutorial, you will learn how to install Fleet osquery manager on Ubuntu 20.04. With the official retirement of the Kolide Fleet as on November 4th, 2020, there has been yet another Fleet that offers the same functionality as Kolide Fleet. According to its Github repository, "Fleet is the most widely used open source osquery manager. Deploying osquery...

In this guide, we are going to learn how to install Monitorix on Ubuntu 20.04. Monitorix is an open source, system monitoring tool that is used to monitor variou services and system resources as outlined below; System load average and usageDisk drive temperatures and healthFilesystem usage and I/O activityDirectory usage Netstat statisticsUsers using the systemNetwork port traffic Read more about the features on the Monitorix...