pgAdmin 4 is the official open-source administration and development platform for PostgreSQL, providing a rich web interface for managing databases, running queries, monitoring activity, and visualizing schemas. On RHEL 8, the recommended installation path is the official PostgreSQL Global Development Group (PGDG) repository, which ships pgAdmin 4 as a dedicated web application package with a […]
Keeping a RHEL 8 server patched against known vulnerabilities is one of the most impactful security practices an administrator can adopt. While manual dnf update runs give you full control, many servers benefit from automatic application of security-only patches without requiring human intervention. RHEL 8 provides the dnf-automatic package, which integrates with systemd timers to […]
Fluentd is a unified logging layer that collects logs from multiple sources, parses and transforms them, and forwards the output to destinations such as Elasticsearch, S3, or another Fluentd aggregator. On RHEL 8, the Treasure Data package td-agent provides a supported, RPM-based distribution of Fluentd that integrates with systemd and works alongside your existing application […]
A private Docker registry lets you store and distribute container images within your organization without relying on Docker Hub or other public registries. Running your own registry gives you full control over image storage, access policies, and network traffic. On RHEL 8, Docker CE is available from the official Docker repository and pairs cleanly with […]
How to Manage Disk Encryption with LUKS and cryptsetup on RHEL 7 Protecting sensitive data at rest is a fundamental security requirement for any enterprise system. Linux Unified Key Setup (LUKS) is the standard disk encryption specification on Linux, and cryptsetup is the command-line tool used to create and manage LUKS-encrypted volumes on RHEL 7. […]
Tekton is a Kubernetes-native CI/CD framework that models each stage of a pipeline as a custom resource, making pipelines portable, reproducible, and version-controlled alongside application code. On RHEL 8 with a running Kubernetes cluster, Tekton integrates directly with kubectl and requires no separate CI server to manage. This tutorial covers installing the Tekton Pipelines CRDs, […]
How to Automate Backups with rsync and cron on RHEL 7 Reliable backups are the foundation of any serious system administration strategy. On RHEL 7, rsync combined with cron provides a powerful, scriptable, and highly efficient backup solution that requires no commercial software or complex infrastructure. rsync transfers only changed file blocks over the network, […]
Initial Server Setup with RHEL 7 Setting up a fresh Red Hat Enterprise Linux 7 server correctly from the start is one of the most important steps you can take to ensure long-term security and stability. Whether you have just provisioned a bare-metal machine or a cloud instance, this guide walks you through every essential […]
GitHub Actions self-hosted runners allow you to execute CI/CD workflows on your own hardware, giving you full control over the operating system, installed tooling, network access, and resource allocation. On RHEL 8 this is especially valuable for pipelines that must access internal systems, use licensed software, or run workloads that exceed GitHub’s hosted-runner resource limits. […]
k3s is a lightweight, CNCF-certified Kubernetes distribution built for resource-constrained environments, edge deployments, and developer laptops, yet it is fully production-capable. It ships as a single binary under 100 MB, bundles its own SQLite datastore, and eliminates the need for a separate etcd cluster on small installations. RHEL 8 is an excellent host for k3s […]
