How to Install Terraform on RHEL 7 Terraform is HashiCorp’s open-source Infrastructure as Code (IaC) tool that lets you define, provision, and manage cloud infrastructure using declarative configuration files. Instead of manually clicking through cloud consoles or writing fragile shell scripts, Terraform allows you to describe your desired infrastructure state — virtual machines, networks, storage […]
Introduction to Kubernetes on Windows Server 2019 Kubernetes is the industry-standard container orchestration platform that automates deployment, scaling, and management of containerized applications. Windows Server 2019 can participate in Kubernetes clusters as a worker node, running Windows containers alongside Linux-based control plane components. As of Kubernetes 1.14 and later, Windows worker nodes are officially supported, […]
How to Set Up Windows Server 2016 Internal DNS Service The Internal DNS Service in Windows Server 2016 SDN provides name resolution capabilities for tenant virtual machines within their isolated virtual networks. In an SDN environment, tenant VMs cannot use the physical DNS servers directly without policy allowing that traffic, and they may have conflicting […]
🟡 Medium ⏱ 5–30 min Last verified: 21 June 2021 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 […]
DevSecOps integrates security into every stage of the software delivery lifecycle rather than treating it as a final gate before release. On RHEL 8 you can assemble a complete DevSecOps pipeline from open-source components, all running on your own infrastructure: a Git server for source control, a CI/CD engine for automation, static analysis and container […]
Building a Go web application and getting it running in production are two different challenges. Go compiles to a single static binary that is trivial to deploy, but you still need a proper project structure, a way to manage runtime configuration securely, a systemd service for process supervision, and a reverse proxy to handle TLS […]
Introduction to DNS over HTTPS on Windows Server 2019 DNS over HTTPS (DoH) encrypts DNS queries inside standard HTTPS traffic on port 443. Traditional DNS queries travel in plaintext over UDP or TCP port 53, exposing every hostname lookup to anyone monitoring the network — ISPs, attackers on public Wi-Fi, or enterprise security appliances. DoH […]
How to Configure WSUS for Automated Patch Management on Windows Server 2012 R2 Windows Server Update Services (WSUS) is Microsoft’s enterprise patch management solution that allows administrators to approve, deploy, and report on Windows and Microsoft software updates across their environment from a central server. By hosting updates internally, WSUS reduces external bandwidth consumption, gives […]
🟡 Medium ⏱ 5–30 min Last verified: 8 June 2021 Affected versions: Ubuntu 20.04 LTS Ubuntu 20.04 Ubuntu 20.04.6 📖 ~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 […]
🟡 Medium ⏱ 5–30 min Last verified: 5 June 2021 📖 ~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 […]
