October 2020 - Page 63 of 69

Common Problems 118442

Ubuntu 16.04 Unattended Upgrades Keeps dpkg Busy

🟡 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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How to Set Up Podman on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Set Up Podman on Oracle Linux 8

Introduction Oracle Linux 8 ships with a stable, security-hardened base that makes deploying set up podman on oracle linux 8 both straightforward and auditable. This tutorial covers the complete procedure for how to Set Up Podman on Oracle Linux 8, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for […]

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Common Problems 115608

RHEL 7 service postfix Queue Grows Due to DNS Failure

🟡 Medium   ⏱ 5–30 min  Last verified: 20 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 114428

Service Is Running But Not Reachable Through firewalld

🟡 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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How to Configure Lightweight User Environments with WPARs on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Configure Lightweight User Environments with WPARs 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 configure lightweight user environments with wpars on ibm aix […]

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Arch Linux — okular — vulnerability — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — okular — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-202003-10 Related CVEs: CVE-2020-9359 Upstream summary: Type: arbitrary command execution. Status: Fixed. Affected: 19.12.3-2. Fixed in: 19.12.3-3. Group: AVG-1113. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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How to Use the Korn Shell (ksh) on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Use the Korn Shell (ksh) 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 the korn shell (ksh) on ibm aix 7.2 […]

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How to Set Up a Git Server with Gitea on Ubuntu 26.04 — step-by-step Linux tutorial on Progressive Robot

How to Register a GitHub Actions Self-Hosted Runner on Ubuntu 26.04

GitHub Actions self-hosted runners allow you to run CI/CD workflows on your own hardware, giving you full control over the environment, installed tools, network access, and compute resources. This guide registers and configures a GitHub Actions self-hosted runner on Ubuntu 26.04 LTS. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS A GitHub […]

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How to Configure RDMA Networking on Windows Server 2016 — step-by-step Windows Server 2016 tutorial on Progressive Robot

How to Configure RDMA Networking on Windows Server 2016

How to Configure Windows Server 2016 RDMA Networking Remote Direct Memory Access (RDMA) is a high-performance networking technology that enables direct memory-to-memory data transfers between networked computers without involving the host CPU or operating system. RDMA dramatically reduces latency, increases throughput, and lowers CPU utilization compared to traditional TCP/IP networking. Windows Server 2016 provides comprehensive […]

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