Capacity Planning

How to Configure GitLab CI/CD Pipelines on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Configure GitLab CI/CD Pipelines on RHEL 7

How to Configure GitLab CI/CD Pipelines on RHEL 7 GitLab CI/CD turns every push to your repository into a fully automated pipeline that can build, test, and deploy your application without manual intervention. The pipeline definition lives in a file called .gitlab-ci.yml at the root of your repository, and the actual work is performed by […]

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How to Install Tekton Pipelines on CentOS Stream 9 — step-by-step CentOS Stream 9 tutorial on Progressive Robot

How to Install Tekton Pipelines on CentOS Stream 9

Introduction How to Install Tekton Pipelines on CentOS Stream 9 on CentOS Stream 9 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 resulting configuration is […]

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How to Set Up Suricata IDS/IPS on CentOS Stream 9 — step-by-step CentOS Stream 9 tutorial on Progressive Robot

How to Set Up Suricata IDS/IPS on CentOS Stream 9

Introduction This tutorial demonstrates how to Set Up Suricata IDS/IPS on CentOS Stream 9 on CentOS Stream 9. 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 CentOS Stream 9 system with the […]

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How to Set Up Vagrant and VirtualBox on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Set Up Vagrant and VirtualBox on RHEL 8

Vagrant is a command-line tool for building and managing reproducible virtual machine environments, and when paired with VirtualBox it gives developers a fast, portable way to spin up isolated Linux VMs on a RHEL 8 host. Using a declarative Vagrantfile, you can define the base box, network settings, shared folders, and provisioning scripts so that […]

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Common Problems 120528

Debian 11 – kernel or grub updates fail because /boot is full

🟠 High   ⏱ 5–30 min  Last verified: 30 March 2022 Affected versions: Debian 11 📖 ~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 & […]

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How to Set Up a Multi-Node Kubernetes Cluster on CentOS Stream 9 — step-by-step CentOS Stream 9 tutorial on Progressive Robot

How to Set Up a Multi-Node Kubernetes Cluster on CentOS Stream 9

Introduction Setting up set up a multi-node kubernetes cluster on centos stream 9 on a CentOS Stream 9 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Set Up a Multi-Node Kubernetes Cluster on CentOS Stream 9, with all the commands you need, the SELinux […]

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How to Set Up Azure Arc on Windows Server 2019 — step-by-step Windows Server 2019 tutorial on Progressive Robot

How to Set Up Azure Arc on Windows Server 2019

Introduction to Azure Arc on Windows Server 2019 Azure Arc extends Azure management capabilities to infrastructure running outside of Azure, including on-premises servers, servers in other clouds, and edge devices. By connecting a Windows Server 2019 machine to Azure Arc, you can manage it from the Azure portal just like a native Azure VM, apply […]

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How to Configure Ceph Cluster on CentOS Stream 9 — step-by-step CentOS Stream 9 tutorial on Progressive Robot

How to Configure Ceph Cluster on CentOS Stream 9

Introduction This tutorial demonstrates how to Configure Ceph Cluster on CentOS Stream 9 on CentOS Stream 9. 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 CentOS Stream 9 system with the default […]

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Common Problems 120561

Debian 11 – systemd Journal Consumes Disk Space – Retention and Vacuum Strategy

🟡 Medium   ⏱ 5–30 min  Last verified: 26 March 2022 Affected versions: Debian 11 📖 ~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 & […]

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How to Set Up VLANs on CentOS Stream 9 — step-by-step CentOS Stream 9 tutorial on Progressive Robot

How to Set Up VLANs on CentOS Stream 9

Introduction How to Set Up VLANs on CentOS Stream 9 on CentOS Stream 9 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 resulting configuration is […]

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