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How to Configure Windows Performance Monitor (perfmon) on Windows Server 2022 — step-by-step Windows Server 2022 tutorial on Progressive Robot

How to Configure Windows Performance Monitor (perfmon) on Windows Server 2022

Overview of Windows Performance Monitor on Windows Server 2022 Windows Performance Monitor (perfmon) is the built-in performance data collection and analysis tool included in every edition of Windows Server. On Windows Server 2022 it provides access to thousands of performance counters sourced from the OS kernel, hardware drivers, and installed applications. The tool operates in […]

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Common Problems 120183

Debian 12 – Certbot Renewal Fails in Automation – Reliable ACME Recovery

🟠 High   ⏱ 5–30 min  Last verified: 20 June 2023 Affected versions: Debian 12 📖 ~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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Alpine Linux 3.18 — go — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.18

Alpine Linux 3.18 — go — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.18 / fixed in 1.9.4-r0 📖 ~4 min read  •  Source: Alpine secdb entry — go 1.9.4-r0 Related CVEs: CVE-2018-6574 CVE-2023-39323 CVE-2023-39318 CVE-2023-39319 CVE-2023-39321 CVE-2023-39322 CVE-2023-29406 CVE-2023-29409  +12 more Upstream summary: Alpine community repository for vv3.18 ships go 1.9.4-r0 which […]

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Oracle Linux 9 — krb5 security, bug fix, and — enhancement update — new behaviour and fixes — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — krb5 security, bug fix, and — enhancement update — new behaviour and fixes (ELSA-2023-2570)

🟡 Medium   ⏱ 10–30 min  Last verified: 19 June 2023 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-2570 Related CVEs: CVE-2020-17049 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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NetBSD 9.4 — p5-libapreq2 — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on NetBSD 9.4

NetBSD 9.4 — p5-libapreq2 — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: NetBSD 9.4 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Related CVEs: CVE-2006-0042 CVE-2019-12412 CVE-2022-22728 Upstream summary: pkgsrc audit-packages flagged p5-libapreq2<2.07 for vulnerability class 'denial-of-service'. Reference: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-0042 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage […]

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Common Problems 121584

Debian 9 – UFW policy blocks package downloads and outbound HTTPS

🟡 Medium   ⏱ 5–30 min  Last verified: 19 June 2023 Affected versions: Debian 9 📖 ~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 Grafana Loki on Oracle Linux 9 — step-by-step Oracle Linux 9 tutorial on Progressive Robot

How to Configure Grafana Loki on Oracle Linux 9

Introduction Setting up configure grafana loki on oracle linux 9 on a Oracle Linux 9 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Configure Grafana Loki on Oracle Linux 9, with all the commands you need, the SELinux and firewalld considerations to keep in […]

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Common Problems 120011

Debian 12 – resolv.conf Keeps Reverting and DNS Fails – Resolver Control

🟠 High   ⏱ 5–30 min  Last verified: 19 June 2023 Affected versions: Debian 12 📖 ~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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Debian 12 — lxdm — vulnerability — patch and remediation guide — diagnosis and fix on Debian 12

Debian 12 — lxdm — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 19 June 2023 Affected versions: Debian 12 (bookworm) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2015-8308 Upstream summary: LXDM before 0.5.2 did not start X server with -auth, which allows local users to bypass authentication with X connections. Table of contents Symptom & […]

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Common Problems 117437

Ubuntu 20.04 /boot Partition Full

🟡 Medium   ⏱ 5–30 min  Last verified: 19 June 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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