November 2020 - Page 10 of 66

Common Problems 114456

RHEL 9 Service Fails Because Port Is Already in Use

🟡 Medium   ⏱ 5–30 min  Last verified: 19 May 2026 📖 ~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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Common Problems 114401

RHEL 9 Registration Missing Required Repositories

🟡 Medium   ⏱ 5–30 min  Last verified: 19 May 2026 📖 ~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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Common Problems 113910

RHEL 10 – AppStream modular dependency conflict blocks package install – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 19 May 2026 Affected versions: RHEL 10.0 RHEL 10.1 📖 ~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 […]

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How to Use mkitab and lsitab to Manage inittab on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Use mkitab and lsitab to Manage inittab on IBM AIX 7.2

Introduction IBM AIX 7.2 is the latest release of IBM’s enterprise-grade UNIX operating system, running on IBM Power Systems hardware. Known for its reliability, security, and performance in mission-critical environments, AIX 7.2 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to use mkitab and lsitab to manage inittab on ibm […]

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

How to Install WooCommerce on Oracle Linux 8

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

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How to Configure Fine-Grained Password Policies on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Configure Fine-Grained Password Policies on Windows Server 2012 R2

How to Configure Fine-Grained Password Policies on Windows Server 2012 R2 Prior to Windows Server 2008, Active Directory supported only a single password policy and account lockout policy per domain — defined in the Default Domain Policy GPO. This meant all users in the domain were subject to the same password rules regardless of their […]

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What is the NVIDIA HGX H200? — step-by-step AI And Machine Learning tutorial on Progressive Robot

What is the NVIDIA HGX H200?

‘In this discussion article, we examine the NVIDIA HGX H200 in detail, exploring the updates to the Hopper Microarchitecture and chip itself. Now available on the [the cloud provider Gradient™ AI Agentic Cloud](https://www.progressiverobot.com/) as a GPU Droplet, we aim to identify the best times to use the NVIDIA HGX H200. ‘

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Introduction to New ECMAScript Modules in Node v12 — step-by-step DevOps tutorial on Progressive Robot

Introduction to New ECMAScript Modules in Node v12

If you’re familiar with popular JavaScript frontend frameworks like React and Angular, then the concept of ECMAScript won’t be entirely new to you. ES Modules have the `import` and `export` syntax we see often in frontend frameworks. **Node uses CommonJS which relies on `require()` for imports. We can now use import and export in Node in addition to `require()`. That’s not all that comes with the new Node v12 release, let’s talk about all the new cool features we can expect.

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Java Project Lombok — step-by-step Programming tutorial on Progressive Robot

Java Project Lombok

URL: https://www.progressiverobot.com/java-project-lombok/ Project Lombok is a very useful tool for java projects to reduce boiler plate code. Problem Statement !java project lombok In Java vs. other language debate, the first knock which you get from other language supporters is that Java requires lot of boiler plate code and you just cannot get over it, and […]

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SLES 15 — velocity — vulnerability — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — velocity — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2021:0800-1 (see also SUSE bugzilla) Related CVEs: CVE-2020-13936 Upstream summary: An attacker that is able to modify Velocity templates may execute arbitrary Java code or run arbitrary system commands with the same […]

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