DNS

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

Oracle Linux 8 — bind — vulnerability — patch and remediation guide (ELSA-2021-1989)

🟠 High   ⏱ 15–60 min  Last verified: 10 March 2021 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2021-1989 Related CVEs: CVE-2021-25215 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 Set Up Samba File Sharing on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Set Up Samba File Sharing on Oracle Linux 8

Introduction Oracle Linux 8 ships with a stable, security-hardened base that makes deploying set up samba file sharing on oracle linux 8 both straightforward and auditable. This tutorial covers the complete procedure for how to Set Up Samba File Sharing on Oracle Linux 8, including dnf module streams where applicable, systemd unit management, and the […]

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How to Configure Networking with /etc/network/interfaces on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Configure Networking with /etc/network/interfaces on Debian 9

Introduction Debian 9 Stretch is built around the ethos of stability and free software. Setting up configure networking with /etc/network/interfaces on debian 9 on Stretch leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Stretch freeze. Follow each step carefully and […]

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Common Problems 121619

Debian 9 Kernel Upgrade Leaves Old Kernels Unmanaged

🟢 Low   ⏱ 5–30 min  Last verified: 8 March 2021 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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Common Problems 118068

Ubuntu 18.04 LTS – snap refresh hangs and blocks package operations – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 8 March 2021 Affected versions: Ubuntu 18.04 LTS 📖 ~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 117446

Ubuntu 20.04 LTS – cloud-init overrides static networking unexpectedly – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 8 March 2021 Affected versions: Ubuntu 20.04 LTS 📖 ~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 Kubernetes Ingress on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Configure Kubernetes Ingress on Oracle Linux 8

Introduction This tutorial demonstrates how to Configure Kubernetes Ingress on Oracle Linux 8 on Oracle Linux 8. 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 8 system with the default […]

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Common Problems 113512

Windows Server 2012 R2 Defender Real-Time Scan Causing Heavy IOPS on Database Files – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 8 March 2021 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 113009

Windows Server 2016 – Container DNS resolution fails on NAT network – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 8 March 2021 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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How to Configure Just Enough Administration (JEA) on Windows Server 2016 — step-by-step Windows Server 2016 tutorial on Progressive Robot

How to Configure Just Enough Administration (JEA) on Windows Server 2016 (WINDOWS-SERVER-2016)

How to Configure Windows Server 2016 Just Enough Administration Just Enough Administration (JEA) is a PowerShell security technology in Windows Server 2016 that enables role-based access control for administrative tasks. JEA allows you to grant specific users limited administrative capabilities without giving them full administrator rights. A JEA endpoint defines exactly which PowerShell commands a […]

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