December 2020 - Page 52 of 69

Common Problems 115998

GRUB update leaves system booting old kernel

🟡 Medium   ⏱ 5–30 min  Last verified: 19 May 2026 Affected versions: Ubuntu 26.04 LTS 📖 ~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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Arch Linux — inetutils — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — inetutils — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-202106-20 Related CVEs: CVE-2020-10188 CVE-2019-0053 Upstream summary: Type: arbitrary code execution. Status: Fixed. Affected: 1.9.4-9. Fixed in: 2.0-1. Group: AVG-1003. Table of contents Symptom & Impact Environment & Reproduction Root […]

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

How to Set Up TimescaleDB on SLES 12

Introduction This tutorial covers How to Set Up TimescaleDB 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: zypper refresh […]

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Common Problems 115038

RHEL 8 tuned Profile Causes Unexpected CPU Throttling

🟡 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 PowerVS Network Connectivity on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Configure PowerVS Network Connectivity on IBM AIX 7.1

Introduction IBM AIX 7.1 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 7.1 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to configure powervs network connectivity on ibm aix 7.1 on […]

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FreeBSD 12 — sqlite — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — sqlite — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: SQLite < 3.50.3 — CWE-190 Integer Overflow or Wraparound in FTS5 module Related CVEs: CVE-2015-3414 CVE-2015-3415 CVE-2015-3416 CVE-2016-6153 CVE-2017-10989 CVE-2018-8740 CVE-2019-5018 CVE-2020-11655  +12 more Upstream summary: https://github.com/google/security-research/security/advisories/GHSA-v2c8-vqqp-hv3g reports: An integer […]

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How To Use Terraform With Your Team — step-by-step Databases tutorial on Progressive Robot

How To Use Terraform With Your Team

In this tutorial, you’ll create an organization in Terraform Cloud to which you’ll connect your project. You’ll then use your orgnanization to set up workspaces and resources. You will store your state in the managed cloud so it is always available. You’ll also set up the pg backend with an accompanying managed Postgres database.

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How to Perform Server-Side OCR on PDFs and Images — step-by-step Linux tutorial on Progressive Robot

How to Perform Server-Side OCR on PDFs and Images

Optical Character Recognition, or OCR, is primarily used to turn text from scanned images into embedded text. Many modern desktop and mobile applications and scanner software stacks have some OCR functionality built in, and most circulating PDFs have text embedded. However, you may still encounter documents or images that contain significant amounts of non-embedded text which cannot be automatically extracted. This tutorial will cover setting up an OCR pipeline.

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

How to Configure Traefik Reverse Proxy on Oracle Linux 8

Introduction Setting up configure traefik 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 Traefik Reverse Proxy on Oracle Linux 8, with all the commands you need, the SELinux and firewalld considerations to […]

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