Rrathsara5d ago · 9 min readIDSLab: What Does Another IDS Stage Actually Add?TL;DR: the tool is at hashtagrr.github.io/IDSLab. The rest of this is how it came to exist. I was reading research papers on machine learning and deep learning based intrusion detection systems when rr-cyber.hashnode.dev
RrathsaraOct 15 · 18 min readThe Firewall Is the Target Now: A Practical Audit ChecklistIn 2020 I was a network security engineer at a firewall partner that had deployed a large number of firewalls across the region, from small businesses to large enterprises. When the company set out torr-cyber.hashnode.dev
RrathsaraSep 22 · 15 min readHiding Network Connections: Encryption, Onion Routing, and Identity SpoofingNetwork logs from an organisation's perimeter tell an analyst a great deal without capturing a single byte of payload: which hosts communicated, when, over which ports, for how long, and how much datarr-cyber.hashnode.dev
RrathsaraSep 18 · 13 min readGNU/Linux: Where Data Hides and How It's FoundA filesystem can tell an investigator that everything is consistent while still leaving data outside the paths that ordinary tools inspect. Hidden filenames are the easy case. More interesting cases irr-cyber.hashnode.dev
RrathsaraSep 18 · 15 min readWindows: Where Data Hides and How It's FoundA file called Secret.exe reports 25 bytes on disk. Nothing in Explorer, nothing in a standard dir listing, and nothing in Task Manager disagrees with that number. Run dir /r instead of dir, and the sarr-cyber.hashnode.dev
RrathsaraAug 14 · 31 min readUnderstanding OAuth 2.0: Delegation, Grant Types, and the Attacks That Actually HappenThe first time I heard the term OAuth, I didn't know what it meant. I was in a conversation with a DBA lead about something adjacent to authentication and authorization, and he mentioned, almost in parr-cyber.hashnode.dev
RrathsaraAug 6 · 15 min readIdentity Foundations: Everything Before OAuthBefore any protocol makes sense on its own terms, a few things underneath it need to be settled first: what authentication and authorization actually are as distinct concepts, how identity gets carrie13Nrr-cyber.hashnode.dev
RrathsaraAug 5 · 9 min readIdentity Was the Gap I Did Not Know I HadI had worked across cloud security engineering, vulnerability assessment, penetration testing, and application security. I had reviewed IAM configurations across multiple cloud platforms, flagged over31Nrr-cyber.hashnode.dev
BBhargav PatilAug 2 · 3 min readThe File Systems in Operating Systems:What's a file System -: So in an Operating System,we perform numerous activities such as creating a file,deleting a file,editing and so on. So to store all these,we need a storage device,such as a S1cyberpub.hashnode.dev
JJAIMIN UMARANIYAJul 30 · 4 min readThe Complete Technical SEO Guide for React Applications By Jaimin Umaraniya (2026)Is React good for SEO? Yes, but only if you handle rendering, metadata, and performance correctly. Installing Next.js doesn't fix your SEO by itself. It just hands you more rendering options to choose1jaiminumaraniya.hashnode.dev
