Networking

How to Set Up a Kubernetes Dashboard on SLES 15 — step-by-step SUSE Linux Enterprise 15 tutorial on Progressive Robot

How to Set Up a Kubernetes Dashboard on SLES 15

Introduction This tutorial covers How to Set Up a Kubernetes Dashboard on SLES 15 on SLES 15. SLES 15 (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. Step 1 — Disable Swap swapoff -a sed -i ‘/ […]

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Common Problems 112483

Windows Server 2019 — IPv6 stateless DHCP options not delivered reliably to dual-stack clients — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 21 May 2021 Affected versions: Windows Server 2019 📖 ~2 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 CircleCI Runner on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Set Up CircleCI Runner on Oracle Linux 8

Introduction Setting up set up circleci runner 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 Set Up CircleCI Runner on Oracle Linux 8, with all the commands you need, the SELinux and firewalld considerations to […]

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

How to Install MySQL 8 on Oracle Linux 8

Introduction Setting up install mysql 8 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 Install MySQL 8 on Oracle Linux 8, with all the commands you need, the SELinux and firewalld considerations to keep in […]

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Common Problems 118127

Ubuntu 18.04 Failed Cloud-Init Networking on Cloned VM Templates

🟡 Medium   ⏱ 5–30 min  Last verified: 20 May 2021 📖 ~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 Configure Network Policy Server (NPS) on Windows Server 2019 — step-by-step Windows Server 2019 tutorial on Progressive Robot

How to Configure Network Policy Server (NPS) on Windows Server 2019

How to Configure Network Policy Server (NPS) on Windows Server 2019 Network Policy Server (NPS) is Microsoft’s implementation of a Remote Authentication Dial-In User Service (RADIUS) server and proxy. NPS centralizes authentication, authorization, and accounting for wireless connections, authenticating switches, remote access VPN connections, and dial-up connections. NPS enables you to enforce consistent network access […]

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How to Schedule Automated Tasks with cron and anacron on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Schedule Automated Tasks with cron and anacron on RHEL 7

How to Schedule Automated Tasks with cron and anacron on RHEL 7 Automation is at the heart of effective Linux system administration. Red Hat Enterprise Linux 7 provides two complementary scheduling systems: cron for tasks that need to run at precise times on continuously running servers, and anacron for tasks that must eventually run on […]

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Common Problems 117925

Ubuntu 18.04 LTS – DNS resolution fails after netplan or resolv.conf changes

🟠 High   ⏱ 5–30 min  Last verified: 19 May 2021 Affected versions: Ubuntu 18.04 LTS Ubuntu 18.04 Ubuntu 18.04.6 📖 ~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 Oracle Linux 8 with Secure Boot — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Configure Oracle Linux 8 with Secure Boot

Introduction How to Configure Oracle Linux 8 with Secure Boot 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 resulting configuration is […]

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