HowTos

In this blog post, you will learn how to backup and restore Elasticsearch Index data. Well, there are various reasons for taking data backups. One of the main reason being to protect the primary data against any unforeseen damage as a result of system hardware/software failure. In case for Elasticsearch, you might be wanting to migrate the data to...

In this guide, we are going to learn how to install Nagios Core on FreeBSD 13. Nagios is an opensource tool that provides an enterprise-class central monitoring engine for IT monitoring, network monitoring, server and applications monitoring. It also provides a web interface for viewing current status, historical logs, and basic reports. Install Nagios Core on FreeBSD 13 Nagios Core 4.4.6 is the...

Follow through this guide to learn how to install Filebeat on FreeBSD. Install Filebeat on FreeBSD Filebeat is not available on the default FreeBSD repositories but can be installed from FreeBSD ports. We use FreeBSD 13.0 in this setup; freebsd-version 13.0-RELEASE Install Ports Collection on FreeBSD To use ports to install software in FreeBSD, you need to install portsnap. Portsnap is a fast and user-friendly tool...

In this tutorial, you will how to install MariaDB 10.5 on FreeBSD 13. “MariaDB 10.5 is the current stable series of MariaDB. It is an evolution of MariaDB 10.4 with several entirely new features not found anywhere else and with backported and reimplemented features from MySQL”. Are you still running FreeBSD 12? Hold on, FreeBSD 13.0 has been released and you can now backup your data and...

With FreeBSD 13 having been released, it might be the right time to upgrade your FreeBSD 12 box to 13. Follow through this guide to learn how to upgrade FreeBSD 12 to 13. You can read more about FreeBSD 13.0-RELEASE notes. Before you can proceed, ensure that you backup all your data just in case something goes south with upgrades. Upgrade FreeBSD...

In this tutorial, you will learn how to setup software raid on Ubuntu 20.04. RAID is an acronym for Redundant Array of Independent Disks. The term inexpensive can occasionally be used instead of independent. RAID is to combine multiple devices/inexpensive disk drives into an array which yields performance that is better than that of one large and expensive drive. Some...

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,...

Protecting your privacy online is becoming a necessity rather than an option. Websites and advertising networks are using more intrusive methods to track your activities online for various purposes. There are also new technologies such as device fingerprinting being used to keep you monitored across multiple devices. There are ways to avoid this kind of intrusive tracking, with VPNs being...

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...