NetworkingDNSInfrastructureHow DNS Works — Complete Guide to Domain Name SystemLearn how DNS works step by step — from typing a URL to loading a website. Covers DNS records, resolution process, caching, DNS security, and troubleshooting. Beginner-friendly guide.March 17, 202616 min read
NetworkingInfrastructureSecurityVLAN vs Subnet — What's the Difference and When to Use EachUnderstand the key differences between VLANs and subnets. Learn how they work, when to use each, and how they work together in real network designs. Practical examples included.March 17, 202613 min read
CloudAWSCybersecurityNetworkingAWS UAE Data Center Hit by Objects, Fire Knocks Cloud Services Offline — What It Means for Cloud InfrastructureOn March 1, 2026, unidentified objects struck AWS's UAE data center causing fire and a major outage. The first time a major cloud provider has been knocked offline by military action. Here's the full timeline, impact, and lessons for cloud architects.March 3, 20265 min read
CybersecurityIoTSCADANetworkingICS/OT Vulnerabilities Hit Record in 2025: 2,155 Flaws Across PLCs, SCADA & Industrial SystemsThe Dragos OT Cybersecurity Report reveals 508 advisories covering 2,155 vulnerabilities in industrial control systems — the highest ever recorded. Three new threat groups now target critical infrastructure globally.March 3, 20267 min read
IoTNetworking5GWi-FiIndustrial IoTWi-Fi 7 vs 5G-Advanced for Industrial IoT: Which Connectivity Wins in 2026?A detailed comparison of Wi-Fi 7 (802.11be) and 5G-Advanced (Release 18) for industrial IoT deployments — covering latency, reliability, cost, spectrum, and real-world use cases for factories, railways, and smart infrastructure.February 24, 20268 min read
CybersecurityNetworkingIndustrial IoTZero TrustZero Trust Security for OT & Industrial Networks: A Practical Implementation GuideLearn how to implement Zero Trust architecture in OT and industrial networks — covering micro-segmentation, identity-based access, SCADA protection, and real-world deployment strategies for critical infrastructure.February 24, 20268 min read
RailwayTelecomNetworkingIoTRailway Telecommunication Systems — How Trains Stay ConnectedA comprehensive guide to railway telecom infrastructure — from OFC networks and MTRC to GSM-R, LTE-R, and modern IP-based communication systems used in Indian Railways.February 18, 202624 min read
Open SourceNetworkingIoTQGIS for Network and Infrastructure Mapping & VisualizationHow to use QGIS — the free and open-source GIS tool — to map, visualize, and analyse network infrastructure, fiber routes, tower locations, and railway assets.February 9, 20265 min read
RailwaySignallingPredictive MaintenanceIoTFailure Detection System (FDS) in Railway InfrastructureHow Failure Detection Systems monitor railway signalling equipment in real-time, detect faults before they cause service disruption, and support condition-based maintenance.January 29, 20266 min read
IoTTelecomRailwayNetworking4G LTE for Industrial IoT and Railway CommunicationHow 4G LTE, LTE-R, and private LTE networks enable reliable high-bandwidth communication for industrial IoT, railway signalling, and critical infrastructure.January 19, 20265 min read