February 2021 - Page 34 of 62

Oracle Linux 8 — Updating libss Package Might Fail if libss-devel Package Is Installed — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — Updating libss Package Might Fail if libss-devel Package Is Installed

🟠 High   ⏱ 5–30 min  Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: Oracle Bug 32005190 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 […]

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Alpine Linux edge — alpine — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — alpine — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 2.25-r0 📖 ~4 min read  •  Source: Alpine secdb entry — alpine 2.25-r0 Related CVEs: CVE-2021-38370 CVE-2020-14929 Upstream summary: Alpine community repository for vedge ships alpine 2.25-r0 which addresses CVE-2021-38370. Table of contents Symptom & Impact […]

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Common Problems 119094

Ubuntu 14.04 LTS Python pip SSL Errors During Install

🟡 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 118932

Ubuntu 14.04 LTS boot drops to initramfs after abrupt power loss

🟠 High   ⏱ 5–30 min  Last verified: 19 May 2026 Affected versions: 14.04 📖 ~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 […]

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Common Problems 117529

Ubuntu 20.04 printer not printing or stuck in queue

🟡 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 115573

RHEL 7 – MariaDB Fails to Start Due to SELinux Boolean Misconfiguration

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

How to Set Up a Network Bridge on Oracle Linux 8

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

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Gentoo Linux — media-libs/libexif — multiple vulnerabilities (10 CVEs) — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — media-libs/libexif — multiple vulnerabilities (10 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202011-19 Related CVEs: CVE-2020-0181 CVE-2020-0198 CVE-2020-0452 CVE-2016-6328 CVE-2019-9278 CVE-2020-0093 CVE-2020-12767 CVE-2020-13112  +2 more Upstream summary: Multiple vulnerabilities have been discovered in libexif. Please review the CVE identifiers referenced below for details. Table […]

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Common Problems 113425

Windows Server 2012 R2 — DNS scavenging removes active records due to aging configuration drift in AD-integrated zones — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 19 May 2026 Affected versions: Windows Server 2012 R2 📖 ~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 […]

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Python KeyError Exception Handling Examples — step-by-step Python tutorial on Progressive Robot

Python KeyError Exception Handling Examples

URL: https://www.progressiverobot.com/python-keyerror-exception-handling-examples/ 1. What is Python KeyError Exception? Python KeyError is raised when we try to access a key from dict, which doesn't exist. It's one of the built-in exception classes and raised by many modules that work with dict or objects having key-value pairs. 2. Python KeyError with Dictionary Let's look at a simple […]

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