May 2020 - Page 36 of 69

How to Set Up an SFTP-Only User on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Set Up an SFTP-Only User on RHEL 10

Introduction RHEL 10 ships with a stable, security-hardened base that makes deploying set up an sftp-only user both straightforward and auditable. This tutorial covers the complete procedure for how to Set Up an SFTP-Only User on RHEL 10, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for network-facing services. […]

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An Introduction to Big Data Concepts and Terminology — step-by-step DevOps tutorial on Progressive Robot

An Introduction to Big Data Concepts and Terminology

Big data is a blanket term for the non-traditional strategies and technologies needed to gather, organize, process, and gather insights from large data sets. While the problem of working with data that exceeds the computing power or storage of a single computer is not…

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Gentoo Linux — net-p2p/transmission — vulnerability — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — net-p2p/transmission — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202007-07 Related CVEs: CVE-2018-10756 Upstream summary: Transmission mishandles some memory management which may allow manipulation of the heap. Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage […]

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Alpine Linux edge — libssh2 — multiple vulnerabilities (12 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux edge

Alpine Linux edge — libssh2 — multiple vulnerabilities (12 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Alpine Linux edge / fixed in 1.9.0-r1 📖 ~4 min read  •  Source: Alpine secdb entry — libssh2 1.9.0-r1 Related CVEs: CVE-2019-17498 CVE-2019-13115 CVE-2019-3855 CVE-2019-3856 CVE-2019-3857 CVE-2019-3858 CVE-2019-3859 CVE-2019-3860  +4 more Upstream summary: Alpine main repository for vedge ships libssh2 1.9.0-r1 which […]

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Common Problems 120971

Debian 10 – NO_PUBKEY and Repository Signature Failures – apt Trust Repair

🟠 High   ⏱ 5–30 min  Last verified: 19 May 2026 Affected versions: Debian 10 📖 ~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 — libraw — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — libraw — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-201805-2 Related CVEs: CVE-2018-10529 CVE-2018-10528 CVE-2017-14265 CVE-2017-13735 Upstream summary: Type: multiple issues. Status: Fixed. Affected: 0.18.9-1. Fixed in: 0.18.10-1. Group: AVG-681. Table of contents Symptom & Impact Environment & Reproduction […]

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How to Install Git on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Install Git on Windows Server 2012 R2

How to Install Git on Windows Server 2012 R2 Git is the industry-standard distributed version control system, and having it installed on Windows Server 2012 R2 is essential for any development, deployment, or DevOps workflow. Whether you are cloning repositories for automated builds, committing configuration files to version control, or scripting deployments that pull from […]

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How to Configure libvirt on SLES 12 — step-by-step SUSE Linux Enterprise 12 tutorial on Progressive Robot

How to Configure libvirt on SLES 12

Introduction This tutorial covers How to Configure libvirt 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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FreeBSD 12 — librsync — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — librsync — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: librsync — collision vulnerability Related CVEs: CVE-2014-8242 Upstream summary: Michael Samuel reports: librsync before 1.0.0 uses a truncated MD4 checksum to match blocks, which makes it easier for remote attackers […]

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