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Debian 11 — cimg — multiple vulnerabilities (15 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — cimg — multiple vulnerabilities (15 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2018-7587 CVE-2018-7588 CVE-2018-7589 CVE-2018-7637 CVE-2018-7638 CVE-2018-7639 CVE-2018-7640 CVE-2018-7641  +7 more Upstream summary: An issue was discovered in CImg v.220. DoS occurs when loading a crafted bmp image that […]

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Ubuntu 20.04へのDocker Composeのインストールおよび使用方法 — step-by-step Docker tutorial on Progressive Robot

Ubuntu 20.04へのDocker Composeのインストールおよび使用方法

Docker Composeは、YAMLファイルの定義に基づいてマルチコンテナアプリケーション環境を実行できるツールです。サービス定義を使用して、ネットワークやデータ量を共有できる複数のコンテナで完全にカスタマイズ可能な環境を構築します。本ガイドでは、Ubuntu 20.04サーバーにDocker Composeをインストールし、このツールを使用する方法を説明します。

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Debian 11 — exactimage — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — exactimage — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2013-1438 CVE-2013-1441 CVE-2015-3885 CVE-2015-8366 Upstream summary: Unspecified vulnerability in dcraw 0.8.x through 0.8.9, as used in libraw, ufraw, shotwell, and other products, allows context-dependent attackers to cause a […]

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How to Write Advanced PowerShell Scripts for Windows Server 2016 Administration — step-by-step Windows Server 2016 tutorial on Progressive Robot

How to Write Advanced PowerShell Scripts for Windows Server 2016 Administration

Introduction Advanced PowerShell scripting transforms Windows Server 2016 administration from a manual, time-intensive process into a streamlined, automated workflow. This guide covers advanced scripting patterns, error handling, modules, and real-world automation scenarios every Windows Server 2016 administrator should master. PowerShell Execution Policy and Script Signing Before deploying advanced scripts, configure an appropriate execution policy and […]

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Debian 11 — widelands — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — widelands — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2011-1932 CVE-2011-4675 Upstream summary: Directory traversal vulnerability in io/filesystem/filesystem.cc in Widelands before 15.1 might allow remote attackers to overwrite arbitrary files via . (dot) characters in a pathname […]

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Cloud Servers: An Introduction — step-by-step Linux tutorial on Progressive Robot

Cloud Servers: An Introduction

A **cloud server** is internet infrastructure that provides computing resources to users remotely. You can think of a cloud server as a private computer that you can set up and control in the same way as an on-premise computer, such as a laptop or desktop. Though the types of software and tooling you install on your cloud server can vary greatly, understanding a few key components will help prepare you to plan and set up your own cloud server.

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How to Secure Apache with Let's Encrypt and Certbot on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Secure Apache with Let’s Encrypt and Certbot on RHEL 7

How to Secure Apache with Let’s Encrypt and Certbot on RHEL 7 Running your Apache web server over plain HTTP exposes your users to traffic interception and degrades trust in modern browsers. Let’s Encrypt provides free, trusted TLS certificates that can be automated entirely on the command line. Certbot is the official Let’s Encrypt client […]

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AlmaLinux 8 — python3-azure-sdk — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — python3-azure-sdk — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALEA-2019:3314 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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