April 2021 - Page 17 of 66

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

How to Set Up a LAMP Stack on Oracle Linux 8

Introduction How to Set Up a LAMP Stack on Oracle Linux 8 on Oracle Linux 8 provides administrators with a robust, enterprise-ready workflow that integrates cleanly with systemd, SELinux, firewalld, and the modern AppStream module system. In this tutorial we will walk through every step required, from package installation to verification, so that the resulting […]

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Gentoo Linux — dev-ada/gnat-suite-bin — vulnerability — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — dev-ada/gnat-suite-bin — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202402-04 Related CVEs: CVE-2020-27619 Upstream summary: A vulnerability has been discovered in GNAT Ada Suite. Please review the CVE identifier referenced below for details. Table of contents Symptom & Impact Environment & […]

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Common Problems 116058

ufw default deny blocks outbound package mirrors

🟠 High   ⏱ 5–30 min  Last verified: 20 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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Common Problems 114432

RHEL 9 SELinux Blocking Web Application Access

🟡 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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FreeBSD 13 — rubygem19-rack — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — rubygem19-rack — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: Ruby Rack Gem — Multiple Issues Related CVEs: CVE-2013-0262 CVE-2013-0263 Upstream summary: Rack developers report: Today we are proud to announce the release of Rack 1.4.5. Fix CVE-2013-0263, timing attack […]

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Introduction to DETR - Part 1 — step-by-step AI And Machine Learning tutorial on Progressive Robot

Introduction to DETR – Part 1

DETR introduces a completely new architecture, setting a new standard in the object detection field. In this article, we explore the Detection Transformer (DETR) concept, highlighting its groundbreaking approach and the significant advancements it brings to object detection technology.

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FreeBSD 13 — linux-c7-graphite — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — linux-c7-graphite — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: graphite2 — out-of-bounds write with malicious font Related CVEs: CVE-2017-5436 Upstream summary: Mozilla Foundation reports: An out-of-bounds write in the Graphite 2 library triggered with a maliciously crafted Graphite font. […]

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How to Configure Btrfs Subvolumes on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Configure Btrfs Subvolumes on RHEL 10

Introduction This tutorial demonstrates how to Configure Btrfs Subvolumes on RHEL 10 on RHEL 10. 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 RHEL 10 system with the default AppStream repositories enabled. […]

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FreeBSD 13 — freerdp — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — freerdp — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: freerdp — clients using the `/video` command line switch might read uninitialized data Related CVEs: CVE-2020-11017 CVE-2020-11018 CVE-2020-11019 CVE-2020-11038 CVE-2020-11039 CVE-2020-11040 CVE-2020-11041 CVE-2020-11043  +12 more Upstream summary: MITRE reports: All […]

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Настройка брандмауэра с UFW в Ubuntu 18.04 — step-by-step Linux tutorial on Progressive Robot

Настройка брандмауэра с UFW в Ubuntu 18.04

Предыдущая версия настоящего обучающего модуля составлена Хейзел Вирдо UFW (Uncomplicated Firewall или «простой брандмауэр») представляет собой интерфейс iptables, предназначенный для упрощения процесса настройки…

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