Logging Monitoring

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 […]

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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 […]

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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 […]

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Common Problems 119510

Debian 13 Time Drift Causes TLS and apt Failures

🟡 Medium   ⏱ 5–30 min  Last verified: 18 October 2025 📖 ~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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How to Install and Configure iSCSI Initiator on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Install and Configure iSCSI Initiator on RHEL 10

Introduction RHEL 10 ships with a stable, security-hardened base that makes deploying install and configure iscsi initiator both straightforward and auditable. This tutorial covers the complete procedure for how to Install and Configure iSCSI Initiator 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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Alpine Linux 3.20 — sleuthkit — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.20

Alpine Linux 3.20 — sleuthkit — 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 4.8.0-r1 📖 ~4 min read  •  Source: Alpine secdb entry — sleuthkit 4.8.0-r1 Related CVEs: CVE-2020-10232 CVE-2020-10233 Upstream summary: Alpine community repository for vv3.20 ships sleuthkit 4.8.0-r1 which addresses CVE-2020-10232. Table of contents Symptom & Impact […]

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How to Configure Tekton CI/CD on Oracle Linux 10 — step-by-step Oracle Linux 10 tutorial on Progressive Robot

How to Configure Tekton CI/CD on Oracle Linux 10

Introduction This tutorial demonstrates how to Configure Tekton CI/CD on Oracle Linux 10 on Oracle Linux 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 Oracle Linux 10 system with the default […]

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Common Problems 119504

Debian 13 – systemd service remains in activating state after reboot

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

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Windows Server 2022 — KB5068781 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Windows Server 2022

Windows Server 2022 — KB5068781 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Windows Server 2022 📖 ~4 min read  •  Source: Microsoft KB5068781 • MSRC update-guide entry Related CVEs: CVE-2025-60716 CVE-2025-60724 CVE-2025-64678 CVE-2025-59505 CVE-2025-59506 CVE-2025-59507 CVE-2025-59508 CVE-2025-59509  +12 more Affected components: Windows Server 2022 Windows Server 2022, 23H2 Edition (Server Core installation) Microsoft summary: […]

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Common Problems 116632

Ubuntu 24.04 LTS – kernel update leads to immediate reboot panic on startup

🔴 Critical   ⏱ 5–30 min  Last verified: 18 October 2025 Affected versions: Ubuntu 24.04 LTS Ubuntu 24.04 Ubuntu 24.04.1 📖 ~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 […]

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