GitHub Actions self-hosted runners allow running GitHub Actions CI/CD workflows on your own infrastructure instead of GitHub’s shared runners. This is essential when workflows need to: access private network resources (internal databases, Docker registries, Kubernetes clusters), use specialised hardware (GPUs, large memory), comply with data residency requirements, or reduce GitHub Actions billing costs for high-volume […]
How to Write Advanced PowerShell Scripts for Windows Server 2012 R2 Administration PowerShell is the cornerstone of modern Windows Server administration. On Windows Server 2012 R2, PowerShell 4.0 ships by default, bringing with it Desired State Configuration, enhanced remoting, workflow capabilities, and a mature scripting ecosystem. For sysadmins managing dozens or hundreds of servers, mastering […]
How to Configure Always On VPN with Windows Server 2012 R2 Always On VPN is a remote access solution that provides seamless, persistent VPN connectivity for domain-joined Windows clients. Unlike traditional VPN solutions that require users to manually initiate connections, Always On VPN automatically establishes and maintains VPN tunnels without user intervention. On Windows Server […]
How to Perform Disaster Recovery Testing on Windows Server 2012 R2 Disaster recovery testing is the systematic process of validating that your documented recovery procedures, backup data, and recovery time objectives are achievable when a real disaster strikes. Windows Server 2012 R2 provides the technologies needed to test DR scenarios comprehensively — Hyper-V for isolated […]
Jenkins is the most widely adopted open-source CI/CD automation server, used to build, test, and deploy software across thousands of organisations. It provides a large plugin ecosystem (1,800+ plugins) for integrating with virtually every version control system, build tool, test framework, and deployment target. Jenkins on RHEL 9 is typically deployed as a system service […]
How to Configure Disk Health Monitoring on Windows Server 2012 R2 Disk failures are one of the most common causes of data loss and unplanned downtime in server environments. Windows Server 2012 R2 provides several built-in mechanisms for monitoring disk health including SMART (Self-Monitoring, Analysis and Reporting Technology) data, storage subsystem event logs, Windows Storage […]
How to Use Windows Memory Diagnostic on Windows Server 2012 R2 Memory hardware failures are a common but often overlooked cause of server instability, random crashes, application errors, and data corruption on Windows Server 2012 R2. Unlike many hardware faults that generate clear error messages, memory errors frequently manifest as intermittent, seemingly random BSODs or […]
How to Test Disaster Recovery Procedures on Windows Server 2012 R2 A disaster recovery plan that has never been tested is not a recovery plan — it is a hope. Periodic, structured testing of disaster recovery procedures is the only way to verify that your backup data is valid, recovery procedures work as documented, and […]
How to Configure System State Backup and Bare Metal Recovery on Windows Server 2012 R2 A system state backup captures the critical OS configuration components required to restore a Windows Server 2012 R2 to a functional state without reinstalling the operating system. It includes the registry, the COM+ class registration database, Active Directory (on domain […]
How to Configure Windows Diagnostics and Memory Dumps on Windows Server 2012 R2 When Windows Server 2012 R2 encounters a critical system failure — typically manifesting as a Blue Screen of Death (BSOD) or Stop Error — the operating system can capture a memory dump file containing the contents of physical RAM at the time […]
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