chris

Common Problems 119594

Debian 13 – ext4 filesystem remounts read-only after I/O errors

🔴 Critical   ⏱ 5–30 min  Last verified: 19 October 2025 Affected versions: Debian 13 Debian 13 (Trixie) Debian 13.x 📖 ~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 […]

Read more
AlmaLinux 9 — cups — multiple vulnerabilities (9 CVEs) — patch and remediation guide — diagnosis and fix on AlmaLinux 9

AlmaLinux 9 — cups — multiple vulnerabilities (9 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 9 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2025:15700 Related CVEs: CVE-2025-58060 CVE-2025-58364 CVE-2023-32360 CVE-2025-58436 CVE-2025-61915 CVE-2024-35235 CVE-2023-32324 CVE-2023-34241  +1 more Upstream summary: The Common UNIX Printing System (CUPS) provides a portable printing layer for Linux, UNIX, and similar operating […]

Read more
How to Configure Bridge Networking on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Configure Bridge Networking on RHEL 9

A network bridge is a Layer 2 virtual switch that allows virtual machines and containers to share a physical network interface and appear as first-class devices on the local network. On RHEL 9, NetworkManager is the authoritative tool for creating and managing bridges, replacing the deprecated brctl-only workflows of older distributions. Bridges are essential for […]

Read more
Common Problems 127122

CentOS Stream 10 – Common Problem 141 – Diagnosis and Fix

🟠 High   ⏱ 5–30 min  Last verified: 18 October 2025 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 […]

Read more
Windows Server 2025 — KB5062553 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Windows Server 2025

Windows Server 2025 — KB5062553 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Windows Server 2025 📖 ~4 min read  •  Source: Microsoft KB5062553 • MSRC update-guide entry Related CVEs: CVE-2024-36357 CVE-2024-36350 CVE-2025-47980 CVE-2025-47981 CVE-2025-48822 CVE-2025-55230 CVE-2025-49757 CVE-2025-53789  +12 more Affected components: Windows Server 2025 Microsoft summary: The vulnerability assigned to this CVE is in […]

Read more
How to Configure FreeIPA Client on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Configure FreeIPA Client on RHEL 10

Introduction RHEL 10 ships with a stable, security-hardened base that makes deploying configure freeipa client both straightforward and auditable. This tutorial covers the complete procedure for how to Configure FreeIPA Client on RHEL 10, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for network-facing services. Prerequisites Before you begin, […]

Read more
Common Problems 124160

Oracle Linux 10 insights-client Fails Through Corporate Proxy

🟡 Medium   ⏱ 5–30 min  Last verified: 18 October 2025 Affected versions: Oracle Linux 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 […]

Read more
How to Profile Performance with perf on Oracle Linux 10 — step-by-step Oracle Linux 10 tutorial on Progressive Robot

How to Profile Performance with perf on Oracle Linux 10

Introduction Setting up profile performance with perf on oracle linux 10 on a Oracle Linux 10 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Profile Performance with perf on Oracle Linux 10, with all the commands you need, the SELinux and firewalld considerations to […]

Read more
Common Problems 124044

Oracle Linux 10 – chronyd reports unsynchronised time causing Kerberos auth failures

🟠 High   ⏱ 5–30 min  Last verified: 18 October 2025 Affected versions: Oracle Linux 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 […]

Read more
Amazon Linux 2 — GraphicsMagick — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — GraphicsMagick — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2GRAPHICSMAGICK1.3-2023-001 Related CVEs: CVE-2020-21679 CVE-2022-1270 CVE-2025-27795 CVE-2025-27796 CVE-2025-32460 Upstream summary: Buffer Overflow vulnerability in WritePCXImage function in pcx.c in GraphicsMagick 1.4 allows remote attackers to cause a denial of service […]

Read more
CHAT