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

Arch Linux — gitea — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-202011-26 Related CVEs: CVE-2020-28991 Upstream summary: Type: insufficient validation. Status: Fixed. Affected: 1.12.5-1. Fixed in: 1.12.6-1. Group: AVG-1299. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis […]

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How to Configure VLAN Tagging with 802.1Q on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Configure VLAN Tagging with 802.1Q on RHEL 8

IEEE 802.1Q VLAN tagging allows a single physical network interface to carry traffic for multiple logically isolated networks by inserting a 4-byte VLAN tag into Ethernet frames. This is essential in virtualization environments, network segmentation architectures, and anywhere a single uplink must serve multiple subnets. On RHEL 8, NetworkManager handles 802.1Q VLAN interfaces natively through […]

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Oracle Linux 8 — nss and nspr security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — nss and nspr security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2019-1951)

🟡 Medium   ⏱ 10–30 min  Last verified: 7 April 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2019-1951 Related CVEs: CVE-2018-18508 CVE-2019-11719 CVE-2019-11727 CVE-2019-11729 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches […]

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Common Problems 118012

GRUB Rescue Prompt After Disk Layout Change

🟡 Medium   ⏱ 5–30 min  Last verified: 7 April 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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AlmaLinux 8 — gdb — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — gdb — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALBA-2022:1828 Upstream summary: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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How to Set Up a LEMP Stack on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Set Up a LEMP Stack on Oracle Linux 8

Introduction This tutorial demonstrates how to Set Up a LEMP Stack on Oracle Linux 8 on Oracle Linux 8. It is written for administrators who want a repeatable, well-explained walkthrough that goes beyond a bare command list and explains each configuration choice. Every command is tested against a freshly registered Oracle Linux 8 system with […]

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如何在Ubuntu 18.04上安装Python 3并建立本地编程环境 — step-by-step Linux tutorial on Progressive Robot

如何在Ubuntu 18.04上安装Python 3并建立本地编程环境

Python是一种灵活多样的编程语言。它的用途广泛,在脚本、自动化、数据分析、机器学习和后端开发方面都具有优势。Python于1991年首次发行,名字的灵感来源于英国喜剧团体“Monty Python”,因此Python开发团队希望让Python用起来很有趣。易于安装配置、代码风格相对简单直接、有即时的反馈和报错,这些特性让Python成为编程初学者的一个很好选择,也同样适合有经验的程序员。[Python…

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