James Kiarie 
Grafana is a free and opensource tool for querying, analyzing and visualizing metrics from an array of multiple data sources whether physical or from the cloud. With Grafana, you can create, explore and share beautiful and intuitive dashboards from different data sources without a hassle. … Read more
Prometheus is an open source monitoring, querying and alerting tool. Originally built by Soundcloud in 2012, the feature-rich tool has been adopted by several companies to monitor their IT infrastructure and ensure all systems are running smoothly. Prometheus allows you to query and pull time-series … Read more
Podman is a free and open-source daemonless container platform that was built to develop, manage and deploy containers and pods on a Linux environment. Pods are group of containers which are usually deployed on the same host system. Podman is gradually replacing docker which is … Read more
In this topic, we shed light on how you can add or attach an EBS (Elastic Block Storage) volume on an AWS instance. An extra EBS volume supplements storage space for your instance. Once attached to the AWS instance, the EBS volume becomes a block … Read more
Ansible is increasingly becoming the go-to platform for application deployment, and software provisioning among developers owing to its ease of use and flexibility. Furthermore, it is easy to set up and no agent is required to be installed on remote nodes, instead, Ansible uses password … Read more
Have you ever wondered how you can backup and restore your Ubuntu or Debian system ? TimeShift, a powerful backup and restore utility. TimeShift allows you to create system snapshots, providing an easy way to revert to a previous state in case of unexpected issues or … Read more
Postfix is a free and opensource MTA (Mail Transfer Agent) used for routing or delivering emails on a Linux system. In this guide, you will learn how to install and configure Postfix on CentOS 8. Lab set up: OS : CentOS 8 … Read more
In the previous article, we demonstrated how to install Nagios Core on CentOS 8 / RHEL 8 server. In this guide, we will dive deeper and add Linux and Windows hosts to the Nagios Core server for monitoring. Adding a Remote Windows Host to Nagios … Read more
Nagios is a free and opensource network and alerting engine used to monitor various devices, such as network devices, and servers in a network. It supports both Linux and Windows OS and provides an intuitive web interface that allows you to easily monitor network resources. … Read more
So, you finally made the bold decision to try out Linux after much convincing. However, you do not want to let go of your Windows 10 operating system yet as you will still be needing it before you learn the ropes on Linux. Thankfully, you … Read more
Rsyslog is a free and opensource logging utility that exists by default on CentOS 8 and RHEL 8 systems. It provides an easy and effective way of centralizing logs from client nodes to a single central server. The centralization of logs is beneficial in two … Read more
