PUProxy Universeinproxyuniverse.hashnode.dev·1h ago · 8 min readWhy Residential Proxies Aren't Enough: A Practical Guide to Reliable Data Collection in 2026A good residential IP is only one of six things that decide whether your data collection runs clean or breaks on day three. Here is the full checklist — session consistency, geo accuracy, DNS behaviou00
SSSunny Sainiinvillxn.hashnode.dev·1d ago · 25 min readNetworking Part 1: Build Your First Network Before You Defend OneHi, I'm Sunny, a polymath who's interested in learning pretty much everything. This is the first article in our Computer Networking series. Here's the plan: this series is going to take you deep into 00
MSManu Shuklainecorpit.hashnode.dev·20h ago · 17 min readCloud SQL PSC reconciliation is default from 1 August 2026: what quietly breaksCloud SQL PSC reconciliation is default from 1 August 2026: what quietly breaks Summary. Google published a Cloud SQL release note on 31 July 2026 and the behaviour took effect the next day. From 1 Au00
GSGeorge Simsindowntherabithole.dev·1d ago · 7 min readMigrating A Critical Kubernetes Deployment From The Default Namespace Without Any DowntimeSomewhere in your cluster there's probably a deployment sitting in the default namespace that everyone knows shouldn't be there. Nobody put it there maliciously, it just happened, early on, before any00
DMDurga Madhav Chandra Vemulapalliindurgamadhav.hashnode.dev·1d ago · 9 min readFrom Theory to the Terminal — Week 09: Two TryHackMe Paths, One Hard LessonThis Week in Numbers 🧭 27 Rooms/modules completed (13 Pre Security + 14 Cyber Security 101) 🛠️ 13 Tools actually run, not just read about 🐞 4 Debugging struggles documented in detail 🎯 100
VCVictor Chukwuemeka Onwuegbuchuleminvictor-chukwuemeka.hashnode.dev·1d ago · 17 min readTCP vs UDP: Reliability or Speed, the Choice Every Connection MakesWe have spent this series following data on its journey. We gave it a network to travel on, a way to travel in packets, layers to pass through, an address to aim for, and a name that resolves to that 00
ASAbhijeet Shindeinweeklyupdate.hashnode.dev·2d ago · 6 min readUnderstanding TCP — Segments, Sequence Numbers & Connection Termination1. Why This Topic Matters Every post so far in this series that mentioned TCP treated it like a black box that "just works" — reliable, ordered, handles retransmission somehow. After spending this muc00
DJDevy Jonesindevyjones.hashnode.dev·2d ago · 5 min readFinding Exposed APIs and Services: A Practical Guide for DevelopersAs developers, we're constantly building and deploying services, often exposing APIs to the internet for legitimate reasons. But sometimes, things slip through the cracks: an old test endpoint, a misc00
GSGeorge Simsindowntherabithole.dev·2d ago · 9 min readHow DNS Really WorksYou've typed a URL into a browser more times than you can count. You've also, at some point, been the engineer paged because "DNS is broken", and if you're honest, you probably fixed it without fully 00
Pproxytunnelinproxytunnel.hashnode.dev·2d ago · 2 min readHow Web Proxies Actually Work: Inside the Request, Header, and Routing ArchitectureHey everyone! 👋 Have you ever wondered what actually happens behind the scenes when you drop a URL into a web proxy and hit enter? We use proxy tools all the time to mask IPs, test network requests, 00
