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Ubuntu 20.04 — dwarves-dfsg — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — dwarves-dfsg — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 24 April 2022 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6215-1 Related CVEs: CVE-2022-3534 CVE-2022-3606 Upstream summary: It was discovered that dwarves incorrectly handled certain memory operations under certain circumstances. An attacker could possibly use this issue to cause dwarves […]

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How to Install Amanda Network Backup on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Install Amanda Network Backup on Debian 11

Introduction How to Install Amanda Network Backup on Debian 11 is a fundamental operation for any administrator maintaining a Debian 11 Bullseye server. Debian 11 Bullseye 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 11. […]

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AlmaLinux 8 — ldns — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — ldns — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALBA-2019:3490 Upstream summary: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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SLES 15 — snakeyaml — multiple vulnerabilities (6 CVEs) — patch and remediation guide — diagnosis and fix on SLES 15

SLES 15 — snakeyaml — multiple vulnerabilities (6 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 24 April 2022 Affected versions: SLES 15 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2022:3397-1 (see also SUSE bugzilla) Related CVEs: CVE-2022-38749 CVE-2022-38750 CVE-2022-38751 CVE-2022-38752 CVE-2017-18640 CVE-2022-25857 Upstream summary: Using snakeYAML to parse untrusted YAML files may be vulnerable to Denial of Service attacks (DOS). If […]

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How to Configure System Center Virtual Machine Manager on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Configure System Center Virtual Machine Manager on Windows Server 2012 R2

How to Configure System Center Virtual Machine Manager on Windows Server 2012 R2 System Center Virtual Machine Manager (SCVMM or VMM) is Microsoft’s comprehensive virtualization management platform that provides centralized control over Hyper-V hosts, private cloud infrastructure, VM deployment, network virtualization, and storage management. VMM 2012 R2 is purpose-built to work with Windows Server 2012 […]

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Oracle Linux 8 — rsyslog — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — rsyslog — vulnerability — patch and remediation guide (ELSA-2022-4799)

🟠 High   ⏱ 15–60 min  Last verified: 24 April 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-4799 Related CVEs: CVE-2022-24903 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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Oracle Linux 8 — xz — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — xz — vulnerability — patch and remediation guide (ELSA-2022-4991)

🟠 High   ⏱ 15–60 min  Last verified: 24 April 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-4991 Related CVEs: CVE-2022-1271 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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Oracle Linux 8 — libuv — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — libuv — vulnerability — patch and remediation guide (ELSA-2021-3075)

🟢 Low   ⏱ 5–15 min  Last verified: 24 April 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-3075 Related CVEs: CVE-2021-22918 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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How to Configure Prometheus AlertManager on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Configure Prometheus AlertManager on RHEL 8

Prometheus AlertManager handles alert routing, grouping, and silencing so that your monitoring stack delivers the right notifications to the right people at the right time. On RHEL 8, deploying AlertManager as a systemd service gives you a production-ready setup that starts automatically on boot and integrates cleanly with an existing Prometheus instance. This tutorial walks […]

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