Raza Ahmad is a technology author and IT infrastructure specialist based in Melbourne, Australia. He writes practitioner-grade guides on cloud computing (Azure and AWS), cybersecurity, enterprise networking with Cisco platforms, Linux administration, DevOps, and virtualization. His work focuses on translating complex infrastructure topics into clear, accurate guidance that engineers, system administrators, and IT decision makers can put to work in production environments. Every article published under his byline is fact-checked against current vendor documentation, official standards, and Raza's own hands-on experience operating the technologies he covers.
A practical process for turning timelines, contributing factors, and corrective actions into fewer repeat incidents—not another document nobody revisits.
How SPF, DKIM, and DMARC work together, how to reach enforcement without breaking legitimate mail, and which BEC controls you still need afterward.
A production-focused comparison of task, asset, and flow orchestration across backfills, testing, deployment, observability, and team fit.
A practitioner's look at Cisco Talos in 2026 — how its telemetry, research, and reputation feeds flow into Secure Firewall, Umbrella, XDR and Duo, where the intelligence is genuinely differentiated, and how to use it without over-trusting a single vendor.
A practitioner's guide to Juniper Advanced Threat Prevention Cloud in 2026 — the evolution of the original Sky ATP service, how sandboxing and reputation feeds work with SRX and MX, and how to evaluate it against Palo Alto WildFire, Cisco Secure Malware Analytics and Check Point ThreatCloud.
A practitioner's evaluation of Check Point ThreatCloud AI in 2026 — how its 50+ engines feed Quantum firewalls, Harmony endpoint and email, and CloudGuard workloads, where the AI marketing is real and where it isn't, and how to test it honestly against Cisco Talos, Palo Alto, and Juniper.
A grounded look at the qubit counts, error-correction milestones, hardware roadmaps, and real-world workloads that define quantum computing in 2026 — and what still separates today's machines from useful advantage.
A practical, engineer-led walk-through of turning a traditional perimeter network into a working zero trust architecture — identity, device posture, segmentation, monitoring — without a rip-and-replace project.
From cluster bootstrap to day-two operations — networking, storage, ingress, observability, secrets, backups and the security baseline you need before real traffic hits.
Everything an engineer needs to run capable open-weight language models on a workstation or homelab in 2026 — hardware sizing, quantisation, serving stacks, and the privacy and cost math that finally makes local inference worth doing.
Twelve months of hands-on production use across Intune, Jamf, Kandji, JumpCloud and Hexnode — where each one actually earns its subscription, and where it does not.
A practitioner comparison of the three EDR platforms most mid-market and enterprise teams actually shortlist — detection quality, operational cost, and the trade-offs vendors do not put on their slide decks.
A field-tested playbook for reducing AWS, Azure and Google Cloud spend by 20–40% without the usual freezes, blanket cuts, or engineering revolt.
A practitioner's timeline for the first day of a ransomware incident — the decisions, the artefacts, and the mistakes that turn a bad day into a business-ending one.
Where the observability market has settled after five years of OpenTelemetry, and the pragmatic stack choices for teams building today.
Passwordless is no longer a pilot. Here's what a real enterprise passkey rollout looks like, from identity plane changes to help-desk retraining.
The edge-compute market has matured. Here are the workloads where it earns its keep, and the workloads where it is still a distraction.
Two years into the platform-engineering hype cycle, the operating models that survive contact with reality have started to look similar. Here's what they share.
Ransomware killed the old 3-2-1 backup rule. The 3-2-1-1-0 model that replaced it is what a modern, defensible backup strategy looks like.
The test pyramid has been dying for a decade. Here's the testing shape that modern engineering teams have converged on, and why.
Inside the silent, sensor-saturated facilities where machine learning models now make split-second operational decisions — and why human oversight still matters more than ever.
Inside Anthropic's research roadmap, Claude's model family, and why regulated industries are quietly standardising on it for production workloads.
How to design, deploy, and operate an enterprise-scale Azure landing zone that survives growth, M&A, and a changing regulatory environment.
Cutting through the marketing to show what zero trust actually means for identity, devices, networks, and applications.
A practitioner's checklist for taking a Kubernetes cluster from “it works on my laptop” to “I am happy to be on call for this.”
Where each cloud is genuinely ahead, where they are at parity, and how to choose for a specific workload rather than as a religion.
What you actually need to know about tokens, embeddings, RAG, and evaluation to ship LLM features that hold up in production.
The diagnostic patterns experienced network engineers use when BGP misbehaves between data centers, clouds, and the internet edge.
Hands-on review of the leading enterprise password managers, with the trade-offs that matter for security and operations teams.
The 20 controls that move a freshly-provisioned Linux server from “default” to “appropriate for production” without breaking operations.
How to choose between Cisco's associate and professional certifications based on where you are in your career and what you want to do next.
A reference configuration for Microsoft 365 security that closes the most common gaps without breaking productivity.
A working engineer's comparison of the two leading IaC platforms based on real deployments at scale.
A practitioner's tour of the AWS services that actually run modern workloads, plus the architecture patterns, governance, and cost controls that keep them healthy in production.
A working systems administrator's reference for installing, hardening, monitoring, and troubleshooting Linux servers in real production environments.
A practical, framework-aligned cybersecurity reference for IT teams responsible for real systems, real users, and real regulatory obligations.
A structured reference for network engineers working with Cisco IOS, IOS-XE, and NX-OS — covering switching, routing, security, and modern automation.
A pragmatic DevOps reference covering CI/CD, infrastructure as code, observability, and the cultural practices that separate high-performing teams from struggling ones.
A working engineer's reference to running Kubernetes in production — architecture, security, networking, storage, observability, and the operational practices that prevent 2 AM pages.
An administrator's reference for Microsoft 365 — identity, Exchange Online, Teams, SharePoint, Intune, and the security baselines that make the stack defensible.
How IT teams should think about artificial intelligence — practical use cases, security and governance considerations, and the platforms that matter.
The methodology behind every software review on SoftwareMarketplace.Net — how we test, what we measure, and how to use our comparisons to make better procurement decisions.
Where the headline pricing comparisons get it wrong, and the cost dimensions that actually determine your bill.
An IT administrator's guide to the differences between on-premises Active Directory and Microsoft Entra ID — and what the cloud-only future actually looks like.
The realistic options for organizations evaluating alternatives to VMware vSphere — Proxmox, Nutanix, OpenShift Virtualization, Azure Stack HCI, and the trade-offs of each.
Configure VLANs, 802.1Q trunks, and inter-VLAN routing on Cisco IOS-XE switches with verified commands and the troubleshooting steps that catch the common mistakes.
A complete, production-oriented walkthrough of standing up Prometheus, Grafana, and node_exporter across a fleet of Linux servers — with dashboards, alerting, and high availability.
A clear-eyed comparison of Docker and Podman covering daemon architecture, rootless containers, Kubernetes alignment, and the production trade-offs of each.
A vendor-neutral comparison of the major Endpoint Detection and Response platforms — capabilities, total cost, integration, and which fits which kind of organization.
A working study plan for the Cisco CCNA exam, written by someone who has passed it — recommended resources, study order, hands-on practice, and the topics that genuinely matter.
A working study plan for Microsoft's AZ-104 Azure Administrator certification — what to study, in what order, with what resources, and which topics genuinely matter in the exam.
Both. Here's the structured case for why every modern system administrator should be comfortable in both shells — and which to learn first depending on your environment.
DevOps did not die — it specialized. Here is how platform engineering, SRE, and DevOps actually divide the work in modern engineering organizations.
Both ArgoCD and Flux deliver the GitOps promise, but the operational shape of each tool is different. Here is how to choose between them.
Six patterns that separate CI/CD pipelines that survive a 10x increase in engineers from the ones that become a permanent platform-team backlog.
Operators turn operational knowledge into running code. Here are the patterns that hold up in production and the failure modes to design around.
The three pillars model is a useful starting point and a misleading destination. Here is what production observability actually looks like in 2026.
Clean architecture without the cargo cult. A working TypeScript reference for separating business logic from frameworks, databases, and HTTP.
DDD is the most useful and the most misused framework in modern software design. Here is how to apply it to microservice boundaries without becoming a parody of itself.
Both Google and Amazon ship at scale; one runs a single repository, the other runs thousands. Here is how to decide which model fits your team.
Three serious API styles, three very different operational profiles. A practical decision framework for picking the one your team can actually live with.
The testing pyramid has four layers in 2026, not three. Where contract tests fit, why E2E should be small, and how to budget the test suite without slowing delivery.
Post-Broadcom VMware licensing has rewritten the virtualization decision for many organizations. Here is how Proxmox VE compares for real-world workloads.
A practical, current hardening checklist for production Linux servers — identity, kernel, network, logging, and the controls that actually reduce risk.
Backups that nobody has restored are not backups. Here is the operational playbook for a 3-2-1-1-0 strategy that survives ransomware, hardware loss, and human error.
Block, file, and object storage solve different problems. Here is how to match each to the workloads that actually need it.
A demo RAG works on a thousand documents. Production RAG fails on a million. Here are the engineering patterns that close the gap.
How to evaluate LLM systems when there is no single right answer — the techniques, the frameworks, and the trade-offs.
Agents that succeed in production share a small set of structural patterns. Here are the ones that earn their complexity and the ones that do not.
Ransomware affiliates have professionalized. Defense has to as well. A current playbook for prevention, detection, response, and recovery.
SIEMs collect everything and let you query. XDRs ingest selected telemetry and ship detections. Here is how to choose between them — and when to run both.
Identity is the new perimeter — and the new perimeter is fragmented across on-prem AD, Entra ID, AWS IAM, Google Cloud, and a long tail of SaaS. Here is how to make it coherent.
Cloud cost optimization that comes from engineering productivity, not procurement pressure. The patterns that actually reduce bills without killing velocity.
Multi-cloud is sold as resilience and is bought as cost optimization. Neither claim survives contact with reality. Here is what actually drives the decision.
Serverless has matured past the hype cycle. Here are the workload shapes where it remains the right answer and the ones where the cost model breaks down.
SD-WAN sales pitches do not survive contact with a real enterprise WAN. Here is what works, what does not, and how to deploy without breaking the business.
The minimum viable network automation stack for engineers used to CLI configuration. Build the right habits before adopting more complex frameworks.