DNS

Oracle Linux 9 — bind — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — bind — vulnerability — patch and remediation guide (ELSA-2025-1681)

🟠 High   ⏱ 15–60 min  Last verified: 6 November 2024 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2025-1681 Related CVEs: CVE-2024-11187 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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Common Problems 114456

RHEL 9 Service Fails Because Port Is Already in Use

🟡 Medium   ⏱ 5–30 min  Last verified: 5 November 2024 📖 ~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 InfluxDB and Telegraf on FreeBSD 14 — step-by-step FreeBSD 14 tutorial on Progressive Robot

How to Install InfluxDB and Telegraf on FreeBSD 14

Introduction This guide explains how to Install InfluxDB and Telegraf on FreeBSD 14 on FreeBSD 14. FreeBSD uses the pkg(8) binary package manager, rc.conf(5) for service startup configuration, and pf(4) as its primary packet filter. There is no SELinux or AppArmor — instead, FreeBSD provides the MAC (Mandatory Access Control) framework and Capsicum for fine-grained […]

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How to Configure Remote Desktop Services on Windows Server 2025 — step-by-step Windows Server 2025 tutorial on Progressive Robot

How to Configure Remote Desktop Services on Windows Server 2025

How to Configure Remote Desktop Services on Windows Server 2025 Remote Desktop Services (RDS) on Windows Server 2025 provides far more than simple remote access to a server desktop. It is a full application delivery and virtual desktop platform capable of hosting multi-session Remote Desktop Session Host (RDSH) farms, publishing individual RemoteApp programs to clients, […]

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Alpine Linux 3.19 — ldns — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.19

Alpine Linux 3.19 — ldns — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.19 / fixed in 1.7.0-r1 📖 ~4 min read  •  Source: Alpine secdb entry — ldns 1.7.0-r1 Related CVEs: CVE-2017-1000231 CVE-2017-1000232 Upstream summary: Alpine main repository for vv3.19 ships ldns 1.7.0-r1 which addresses CVE-2017-1000231. Table of contents Symptom & Impact […]

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Common Problems 114401

RHEL 9 Registration Missing Required Repositories

🟡 Medium   ⏱ 5–30 min  Last verified: 2 November 2024 📖 ~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 Configure Consul for Service Discovery on FreeBSD 14 — step-by-step FreeBSD 14 tutorial on Progressive Robot

How to Configure Consul for Service Discovery on FreeBSD 14

Introduction How to Configure Consul for Service Discovery on FreeBSD 14 is a core administration task for any FreeBSD 14 server operator. FreeBSD 14 ships with the 15.0-RELEASE kernel, ZFS as the default root filesystem, Capsicum capability sandboxing improvements, and an updated ports tree. Unlike Linux distributions, FreeBSD uses rc(8) for service management, pf for […]

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Common Problems 116419

Ubuntu 24.04 LTS Cloud-Init Overwrites Netplan on Reboot

🟡 Medium   ⏱ 5–30 min  Last verified: 1 November 2024 📖 ~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 Configure Prometheus AlertManager on FreeBSD 14 — step-by-step FreeBSD 14 tutorial on Progressive Robot

How to Configure Prometheus AlertManager on FreeBSD 14

Introduction How to Configure Prometheus AlertManager on FreeBSD 14 is a core administration task for any FreeBSD 14 server operator. FreeBSD 14 ships with the 15.0-RELEASE kernel, ZFS as the default root filesystem, Capsicum capability sandboxing improvements, and an updated ports tree. Unlike Linux distributions, FreeBSD uses rc(8) for service management, pf for packet filtering, […]

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