Backup Recovery

FreeBSD 12 — py311-borgbackup — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — py311-borgbackup — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 23 March 2023 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: Borg (Backup) — flaw in cryptographic authentication scheme in Borg allowed an attacker to fake archives and indirectly cause backup data loss. Related CVEs: CVE-2023-36811 Upstream summary: Thomas Waldmann reports: […]

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Common Problems 111716

Windows Server 2022 – RDS licensing mode not configured after policy drift – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 23 March 2023 Affected versions: Windows Server 2022 📖 ~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 Configure Buildbot CI on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Configure Buildbot CI on Debian 9

Introduction How to Configure Buildbot CI on Debian 9 is a fundamental operation for any administrator maintaining a Debian 9 Stretch server. Debian 9 Stretch ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ from Debian 9. This […]

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Common Problems 114503

RHEL 9 dnf upgrade blocked by module stream conflicts

🟡 Medium   ⏱ 5–30 min  Last verified: 23 March 2023 📖 ~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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Common Problems 124487

Oracle Linux 9 – Common Problem 003 – Diagnosis and Fix

🟡 Medium   ⏱ 5–30 min  Last verified: 22 March 2023 Affected versions: Oracle Linux 9 📖 ~3 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 Install Lighttpd on Oracle Linux 9 — step-by-step Oracle Linux 9 tutorial on Progressive Robot

How to Install Lighttpd on Oracle Linux 9

Introduction This tutorial demonstrates how to Install Lighttpd on Oracle Linux 9 on Oracle Linux 9. 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 9 system with the default AppStream […]

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Ubuntu 18.04 — percona-xtrabackup — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — percona-xtrabackup — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 22 March 2023 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6745-1 Related CVEs: CVE-2022-25834 Upstream summary: It was discovered that in Percona XtraBackup, a local crafted filename could trigger arbitrary code execution. Table of contents Symptom & Impact Environment & […]

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Common Problems 113482

Windows Server 2012 R2 MPIO Path Imbalance Sends Traffic Over Single Storage Link – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 22 March 2023 Affected versions: Windows Server 2012 R2 📖 ~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 […]

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Common Problems 112997

Windows Server 2016 — WSUS metadata corruption prevents clients from downloading approved updates — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 22 March 2023 Affected versions: Windows Server 2016 📖 ~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 111683

Windows Server 2022 – DHCP authorization lost in Active Directory – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 22 March 2023 Affected versions: Windows Server 2022 📖 ~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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