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How to Install and Configure Node Exporter on a Client for Prometheus Monitoring

Monitoring infrastructure is crucial for system administrators and DevOps teams. Prometheus, a powerful open-source monitoring and alerting toolkit, is widely used for collecting and visualizing system metrics. However, to monitor a remote system, you need an agent running on that system and Node Exporter is Prometheus’ recommended tool for this job. Prerequisites Before proceeding: What is Node Exporter? It is a Prometheus exporter for hardware and OS metrics. It runs on client machines and makes

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Jishnu V October 24, 2025

How to install and run Podman and Buildah on Rocky / AlmaLinux

Podman (short for pod manager) is an open source tool for developing, managing, and running containers. Developed by Red Hat engineers along with the open source community, Podman manages the entire container ecosystem using the libpod library. Podman helps you to run, build, manage, and debug OCI containers directly within your Kubernetes cluster. Its REST API socket allows remote applications to create and control containers on demand, while providing compatibility with the Docker API and

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Merin John October 23, 2025

How to Increase AWS Service Quotas

When you start building applications or infrastructure on AWS, you will quickly realize that your account has default limits (also called service quotas) for how many resources you can use: These quotas help AWS manage capacity fairly across users, but they can become a bottleneck as your workload scales. Elastic IP Quota Elastic IPs are static public IPv4 addresses that you can associate with EC2 instances, NAT Gateways, or Network Interfaces. They’re useful when: By

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Sajna VM October 17, 2025

How to Control Process Priority in Linux — Using nice and renice

On a busy Linux server, where multiple applications, services, or background jobs are running —competing for system resources is a natural consequence. You might face slowdowns, high CPU usage, or unresponsive services. To manage such situations, Linux provides built‑in tools to influence process scheduling: nice and renice. These let you assign or change the priority of processes so critical ones get more CPU time, and less critical ones back off. In this blog, you’ll learn:

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Merin John October 16, 2025

How to Resolve nftables Loading Errors Caused by iptables-nft on AlmaLinux 9

Introduction As modern Linux distributions transition from iptables to nftables, some compatibility issues are beginning to emerge—particularly for those using iptables-nft, the translation layer between old iptables syntax and nftables. If you’re running AlmaLinux 9 or CloudLinux 9 and have followed steps to install iptables on AlmaLinux 9, you may encounter errors when starting the nftables service. This issue typically manifests with the following error: This error prevents the nftables firewall from loading stored rules,

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Jishnu V October 16, 2025

How to Install Yii Framework on Ubuntu Using Apache

Yii is a modern, high-performance PHP framework that makes developing web applications faster and more secure. With its elegant MVC architecture, built-in tools, and extensive features, Yii is a popular choice for both small and large projects. In this guide, we’ll walk you through How to install Yii Framework on Ubuntu and running it with Apache in just a few simple steps. Step 1: Update Your System Before starting, make sure your system packages are

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Sourav AJ October 13, 2025

How to Install PrestaShop 8.1.6 on Ubuntu 24.04

 Update Your System Start by updating all packages:  Install Apache Web Server To verify it’s running:  Install MySQL (or MariaDB) Install MySQL server: apt install mysql-server -y Now log in and create your PrestaShop database and user: Inside the MySQL shell, run:  Install PHP 8.1 and Required Extensions Ubuntu 24.04 ships with PHP 8.3, but PrestaShop only supports up to PHP 8.1.  Add the PHP 8.1 PPA: Install PHP 8.1 modules: Set PHP 8.1 as

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Sajna VM October 10, 2025

How to Install and Configure Prometheus on Ubuntu for System Monitoring

Introduction Prometheus is a powerful open-source monitoring system designed for collecting metrics from targets, storing them efficiently, and allowing users to query and analyze them in real time. In this blog we’ll learn how to install Prometheus on Ubuntu server, which will serve as the monitoring server. Step 1: Download and Install Prometheus Download the latest stable Prometheus release: Replace the version number with the latest one if needed. Extract the tarball: Remove the archive

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Jishnu V October 10, 2025

How to Setup Podman on AlmaLinux 9

Introduction Containers have become a foundational tool in modern software development and deployment. Podman (short for pod manager) is an open source tool for developing, managing, and running containers. Developed by Red Hat engineers along with the open source community, Podman manages the entire container ecosystem using the libpod library. In this blog, we will go through the podman installation on AlmaLinux 9 and use it to run containers — including mounting custom volumes —

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Merin John September 30, 2025

How to Migrate an RDS Instance Between AWS Accounts

Sometimes you may need to migrate an RDS instance from one AWS account to another — for example, when consolidating accounts or setting up environments for a new team. AWS makes this possible through RDS Snapshots. In this blog, we are going to discuss how to migrate an RDS instance from one AWS account to another and the best way to Migrate RDS from one account to another. Steps to Migrate RDS Between AWS Accounts

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Sourav AJ September 30, 2025
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