web server

How to Install and Configure Consul for Service Discovery on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Install and Configure Consul for Service Discovery on RHEL 8

Consul is a distributed service mesh and service discovery tool from HashiCorp that enables services to find each other by name rather than by hard-coded IP addresses and ports. On RHEL 8, Consul is available through the official HashiCorp dnf repository and integrates with systemd for process management. This tutorial covers installing Consul in server […]

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How to Configure Apache as a Reverse Proxy on SLES 12 — step-by-step SUSE Linux Enterprise 12 tutorial on Progressive Robot

How to Configure Apache as a Reverse Proxy on SLES 12

Introduction This tutorial covers How to Configure Apache as a Reverse Proxy on SLES 12 on SLES 12. SLES 12 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Prerequisites Ensure your SLES 12 system is up to […]

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Common Problems 119087

Ubuntu 14.04 LTS – Apache fails to start because port 80 is in use

🟠 High   ⏱ 5–30 min  Last verified: 13 October 2020 Affected versions: Ubuntu 14.04 LTS Ubuntu 14.04 Ubuntu 14.04.6 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention […]

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How to Configure Nginx as a Reverse Proxy on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Configure Nginx as a Reverse Proxy on Oracle Linux 8

Introduction Setting up configure nginx as a reverse proxy on oracle linux 8 on a Oracle Linux 8 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Configure Nginx as a Reverse Proxy on Oracle Linux 8, with all the commands you need, the SELinux […]

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How to Set Up ArgoCD for GitOps on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Set Up ArgoCD for GitOps on RHEL 7

How to Set Up ArgoCD for GitOps on RHEL 7 GitOps is an operational model in which the desired state of your infrastructure and applications is stored declaratively in a Git repository, and an automated agent continuously reconciles that desired state with the actual running state in your Kubernetes cluster. ArgoCD is the leading open-source […]

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How to Configure Apache as a Reverse Proxy on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Configure Apache as a Reverse Proxy on Oracle Linux 8

Introduction How to Configure Apache as a Reverse Proxy on Oracle Linux 8 on Oracle Linux 8 provides administrators with a robust, enterprise-ready workflow that integrates cleanly with systemd, SELinux, firewalld, and the modern AppStream module system. In this tutorial we will walk through every step required, from package installation to verification, so that the […]

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How to Install Lighttpd on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Install Lighttpd on Oracle Linux 8

Introduction This tutorial demonstrates how to Install Lighttpd on Oracle Linux 8 on Oracle Linux 8. It is written for administrators who want a repeatable, well-explained walkthrough that goes beyond a bare command list and explains each configuration choice. Every command is tested against a freshly registered Oracle Linux 8 system with the default AppStream […]

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Common Problems 115093

RHEL 8 cockpit web console unreachable after certificate update

🟡 Medium   ⏱ 5–30 min  Last verified: 5 October 2020 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related Errors & Cross-Refs References & Further […]

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How to Install and Use Podman with systemd Socket Activation on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Install and Use Podman with systemd Socket Activation on RHEL 7

How to Install and Use Podman with systemd Socket Activation on RHEL 7 Podman is a daemonless container engine developed by Red Hat that provides a Docker-compatible CLI while operating without a central privileged daemon. On RHEL 7, Podman integrates deeply with systemd, enabling containers to be managed as first-class system services, started on-demand via […]

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How to Set Up Cockpit Web Console on SLES 12 — step-by-step SUSE Linux Enterprise 12 tutorial on Progressive Robot

How to Set Up Cockpit Web Console on SLES 12

Introduction This tutorial covers How to Set Up Cockpit Web Console on SLES 12 on SLES 12. SLES 12 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Prerequisites Ensure your SLES 12 system is up to date: […]

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