Linux

openSUSE Leap 15.6 — python311-Werkzeug — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Leap 15.6

openSUSE Leap 15.6 — python311-Werkzeug — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Leap 15.6 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2024:1572-1 (see also SUSE bugzilla) Related CVEs: CVE-2024-34069 CVE-2024-49767 Upstream summary: Werkzeug is a comprehensive WSGI web application library. The debugger in affected versions of Werkzeug can allow an attacker to […]

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How to Configure Unattended Upgrades on Ubuntu 24.04 — step-by-step Linux tutorial on Progressive Robot

How to Sync Time with systemd-timesyncd on Ubuntu 24.04

Accurate system time is critical for SSL certificates, logs, cron jobs, and distributed systems. Ubuntu 24.04 LTS uses systemd-timesyncd as the default NTP client. This guide shows you how to configure and verify time synchronisation. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 LTS server A user with sudo privileges Internet connectivity Step […]

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openSUSE Leap 15.5 — protobuf-java — vulnerability — patch and remediation guide — diagnosis and fix on openSUSE Leap 15.5

openSUSE Leap 15.5 — protobuf-java — vulnerability — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Leap 15.5 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2024:3745-1 (see also SUSE bugzilla) Related CVEs: CVE-2024-7254 Upstream summary: Any project that parses untrusted Protocol Buffers data containing an arbitrary number of nested groups / series of SGROUP tags can […]

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Common Problems 127073

CentOS Stream 10 – Common Problem 186 – Diagnosis and Fix

🟢 Low   ⏱ 5–30 min  Last verified: 19 December 2024 Affected versions: CentOS Stream 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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How to Set Up Port Knocking on CentOS Stream 10 — step-by-step CentOS Stream 10 tutorial on Progressive Robot

How to Set Up Port Knocking on CentOS Stream 10

Introduction How to Set Up Port Knocking on CentOS Stream 10 on CentOS Stream 10 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 configuration […]

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Common Problems 116503

Ubuntu 24.04 LTS – Bluetooth unavailable after suspend and resume – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 19 December 2024 Affected versions: Ubuntu 24.04 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 116480

Ubuntu 24.04 LTS – Docker permission denied on /var/run/docker.sock – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 19 December 2024 Affected versions: Ubuntu 24.04 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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How to Set Up FluxCD on CentOS Stream 10 — step-by-step CentOS Stream 10 tutorial on Progressive Robot

How to Set Up FluxCD on CentOS Stream 10

Introduction CentOS Stream 10 ships with a stable, security-hardened base that makes deploying set up fluxcd on centos stream 10 both straightforward and auditable. This tutorial covers the complete procedure for how to Set Up FluxCD on CentOS Stream 10, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for […]

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

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

🟢 Low   ⏱ 5–15 min  Last verified: 19 December 2024 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2017-20189 CVE-2024-22871 Upstream summary: In Clojure before 1.9.0, classes can be used to construct a serialized object that executes arbitrary code upon deserialization. This is relevant if a […]

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Alpine Linux 3.20 — py3-ecdsa — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.20

Alpine Linux 3.20 — py3-ecdsa — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.20 / fixed in 0.13.3-r0 📖 ~4 min read  •  Source: Alpine secdb entry — py3-ecdsa 0.13.3-r0 Related CVEs: CVE-2019-14859 CVE-2019-14853 Upstream summary: Alpine community repository for vv3.20 ships py3-ecdsa 0.13.3-r0 which addresses CVE-2019-14859. Table of contents Symptom & Impact […]

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