DNS

How to Set Up Windows Server 2019 with Zabbix — step-by-step Windows Server 2019 tutorial on Progressive Robot

How to Set Up Windows Server 2019 with Zabbix

How to Set Up Windows Server 2019 with Zabbix Zabbix is an enterprise-class open-source monitoring platform that provides agent-based and agentless monitoring of Windows Server 2019 infrastructure. The Zabbix agent for Windows collects over 100 built-in metrics including CPU, memory, disk, network, services, and event log data. Zabbix’s template system makes it straightforward to apply […]

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AlmaLinux 9 — dnsmasq — multiple vulnerabilities (4 CVEs) — patch and remediation guide — diagnosis and fix on AlmaLinux 9

AlmaLinux 9 — dnsmasq — multiple vulnerabilities (4 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 9 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2024:1334 Related CVEs: CVE-2023-50387 CVE-2023-50868 CVE-2023-28450 CVE-2022-0934 Upstream summary: The dnsmasq packages contain Dnsmasq, a lightweight DNS (Domain Name Server) forwarder and DHCP (Dynamic Host Configuration Protocol) server. Security Fix(es): * dnsmasq: […]

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How to Configure Edge Transport Server for Email on Windows Server 2022 — step-by-step Windows Server 2022 tutorial on Progressive Robot

How to Configure Edge Transport Server for Email on Windows Server 2022

Overview of Exchange Edge Transport Server The Exchange Edge Transport server role acts as the outermost layer of your on-premises Exchange mail infrastructure. Unlike Hub Transport or Mailbox servers, the Edge Transport server is intentionally deployed in the DMZ (demilitarized zone) or perimeter network and is not domain-joined. This isolation means that if the Edge […]

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Common Problems 116891

Ubuntu 22.04 LTS Stuck at Black Screen After Kernel Update

🟡 Medium   ⏱ 5–30 min  Last verified: 23 January 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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How to Set Up Duplicity Backup on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Set Up Duplicity Backup on Debian 9

Introduction Deploying set up duplicity backup on debian 9 on a Debian 9 Stretch machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites Before you […]

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Common Problems 111780

Windows Server 2022 — WinRM HTTPS listener fails to bind on Windows Server 2022 — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 23 January 2023 Affected versions: Windows Server 2022 📖 ~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 114553

RHEL 9 NetworkManager profile changes not persisting

🟡 Medium   ⏱ 5–30 min  Last verified: 23 January 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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How to Set Up Windows Server Failover Cluster (WSFC) with SQL Server on Windows Server 2022 — Windows Server 2022 tutorial on Progressive Robot

How to Set Up Windows Server Failover Cluster (WSFC) with SQL Server on Windows Server 2022

Introduction to Windows Server Failover Clustering with SQL Server Windows Server Failover Clustering (WSFC) combined with SQL Server Failover Cluster Instances (FCI) is one of the oldest and most battle-tested high-availability solutions for SQL Server workloads. Unlike Always On Availability Groups, which replicate data between nodes, a Failover Cluster Instance presents SQL Server as a […]

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Common Problems 112585

Windows Server 2019 — Windows Update for Business enrollment conflict blocks update scans — Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 22 January 2023 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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Common Problems 112415

Windows Server 2019 — Password change rejected with policy mismatch even though it meets stated requirements — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 22 January 2023 Affected versions: Windows Server 2019 📖 ~2 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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