DNS

NetBSD 10.0 — bind-9.2.1rc* — vulnerability — patch and remediation guide — diagnosis and fix on NetBSD 10.0

NetBSD 10.0 — bind — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: NetBSD 10.0 📖 ~4 min read  •  Source: pkgsrc audit-packages entry Upstream summary: pkgsrc audit-packages flagged bind for vulnerability class 'denial-of-service'. Reference: http://www.cert.org/advisories/CA-2002-15.html Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary […]

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How to Install Tekton Pipelines on CentOS Stream 10 — step-by-step CentOS Stream 10 tutorial on Progressive Robot

How to Install Tekton Pipelines on CentOS Stream 10

Introduction How to Install Tekton Pipelines on CentOS Stream 10 on CentOS Stream 10 provides administrators with a robust, enterprise-ready workflow that integrates cleanly with systemd, SELinux, firewalld, and the modern AppStream module system. In this tutorial we will walk through every step required, from package installation to verification, so that the resulting configuration is […]

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How to Configure Windows Server Software-Defined Networking (SDN) on Windows Server 2025 — step-by-step Windows Server 2025 tutorial on Progressive Robot

How to Configure Windows Server Software-Defined Networking (SDN) on Windows Server 2025

How to Configure Windows Server Software-Defined Networking (SDN) on Windows Server 2025 Software-Defined Networking (SDN) separates the network control plane from the data plane, enabling centralized, programmable management of network infrastructure through software rather than device-by-device configuration. Windows Server 2025 includes a mature, Microsoft-supported SDN stack built natively into Hyper-V and managed through the Network […]

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Alpine Linux 3.19 — pdns-recursor — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.19

Alpine Linux 3.19 — pdns-recursor — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.19 / fixed in 4.9.5-r0 📖 ~4 min read  •  Source: Alpine secdb entry — pdns-recursor 4.9.5-r0 Related CVEs: CVE-2024-25583 CVE-2023-50387 CVE-2023-50868 CVE-2023-22617 CVE-2022-37428 CVE-2022-27227 CVE-2020-25829 CVE-2020-14196  +12 more Upstream summary: Alpine community repository for vv3.19 ships pdns-recursor 4.9.5-r0 which […]

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Common Problems 114433

RHEL 9 journalctl shows rapid disk growth in logs

🟡 Medium   ⏱ 5–30 min  Last verified: 3 February 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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Alpine Linux 3.20 — gdnsd — vulnerability — patch and remediation guide — diagnosis and fix on Alpine Linux 3.20

Alpine Linux 3.20 — gdnsd — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.20 / fixed in 2.4.3-r0 📖 ~4 min read  •  Source: Alpine secdb entry — gdnsd 2.4.3-r0 Related CVEs: CVE-2019-13952 Upstream summary: Alpine community repository for vv3.20 ships gdnsd 2.4.3-r0 which addresses CVE-2019-13952. Table of contents Symptom & Impact Environment […]

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How to Configure Redis Cluster on CentOS Stream 10 — step-by-step CentOS Stream 10 tutorial on Progressive Robot

How to Configure Redis Cluster on CentOS Stream 10

Introduction Setting up configure redis cluster on centos stream 10 on a CentOS Stream 10 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Configure Redis Cluster on CentOS Stream 10, with all the commands you need, the SELinux and firewalld considerations to keep in […]

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How to Configure pgBouncer on CentOS Stream 10 — step-by-step CentOS Stream 10 tutorial on Progressive Robot

How to Configure pgBouncer on CentOS Stream 10

Introduction Setting up configure pgbouncer on centos stream 10 on a CentOS Stream 10 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Configure pgBouncer on CentOS Stream 10, with all the commands you need, the SELinux and firewalld considerations to keep in mind, and […]

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Common Problems 114585

RHEL 9: rsyslog Not Forwarding Logs to Remote SIEM

🟡 Medium   ⏱ 5–30 min  Last verified: 1 February 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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Alpine Linux 3.19 — dnsmasq — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Alpine Linux 3.19

Alpine Linux 3.19 — dnsmasq — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Alpine Linux 3.19 / fixed in 2.90-r0 📖 ~4 min read  •  Source: Alpine secdb entry — dnsmasq 2.90-r0 Related CVEs: CVE-2023-50387 CVE-2023-50868 CVE-2023-28450 CVE-2022-0934 CVE-2021-3448 CVE-2020-25681 CVE-2020-25682 CVE-2020-25683  +12 more Upstream summary: Alpine main repository for vv3.19 ships dnsmasq 2.90-r0 which […]

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