Troubleshooting

Common Problems 119051

Ubuntu 14.04 LTS cron jobs stop running after timezone and DST changes

🟡 Medium   ⏱ 5–30 min  Last verified: 23 August 2020 Affected versions: 14.04 📖 ~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 […]

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Common Problems 113416

Windows Server 2012 R2 – NIC RSS and VMQ driver mismatch causes packet loss – Fix and Prevention

🟠 High   ⏱ 5–30 min  Last verified: 23 August 2020 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 113035

Windows Server 2016 – RDP NLA fails with CredSSP encryption oracle error – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 23 August 2020 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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Common Problems 112590

Windows Server 2019 DFS Namespace Referrals Slow Due to Overloaded File Targets – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 23 August 2020 Affected versions: Windows Server 2019 📖 ~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 Install MongoDB on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Install MongoDB on Debian 10

Introduction Debian 10 Buster is built around the ethos of stability and free software. Setting up install mongodb on debian 10 on Buster leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Buster freeze. Follow each step carefully and the resulting […]

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Amazon Linux 2 — python-httplib2 — vulnerability — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — python-httplib2 — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2ANSIBLE2-2023-007 Related CVEs: CVE-2020-11078 Upstream summary: A flaw was found in python-httplib2. An attacker controlling an unescaped part of uri for `httplib2.Http.request()` could change request headers and body, send additional […]

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How to Set Up Veeam Backup for Windows Server 2016 — step-by-step Windows Server 2016 tutorial on Progressive Robot

How to Set Up Veeam Backup for Windows Server 2016

How to Use Veeam Backup for Windows Server 2016 Veeam Backup and Replication is an industry-leading data protection platform that provides image-level backups, replication, and instant recovery for Windows Server 2016 and other platforms. Unlike Windows Server Backup, Veeam captures the full VM or physical machine state at the hypervisor or agent level, enabling near-zero […]

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

Oracle Linux 8 — libvncserver — vulnerability — patch and remediation guide (ELSA-2020-0920)

🟠 High   ⏱ 15–60 min  Last verified: 23 August 2020 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2020-0920 Related CVEs: CVE-2019-15690 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 a CI/CD Pipeline with Tekton on Kubernetes on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Set Up a CI/CD Pipeline with Tekton on Kubernetes on RHEL 7

How to Set Up a CI/CD Pipeline with Tekton on Kubernetes on RHEL 7 Tekton is a Kubernetes-native CI/CD framework that defines pipelines as Kubernetes Custom Resource Definitions (CRDs). Unlike Jenkins, which runs as a separate server, or GitLab CI, which requires the GitLab platform, Tekton lives entirely inside your cluster and follows standard Kubernetes […]

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Ubuntu 20.04 — inspircd — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — inspircd — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 22 August 2020 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7405-1 Related CVEs: CVE-2016-7142 CVE-2019-20917 CVE-2020-25269 Upstream summary: It was discovered that InspIRCd did not correctly handle certificate fingerprints, which could lead to spoofing. A remote attacker could possibly use […]

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