ASAbhijeet Shindeinweeklyupdate.hashnode.dev·1d 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
MGMayank Guptaincswormweekly.hashnode.dev·6d ago · 9 min readNetworking for Backend Developers Part 1Ever wondered how you can send data from your computer to a server sitting thousands of miles away in a instant and also receive the data from that server and all these in few milliseconds , well toda00
ASAbhijeet Shindeinweeklyupdate.hashnode.dev·Jul 26 · 8 min readRouting, ICMP & the UDP Datagram — How Data Travels, Gets Diagnosed, and Moves Fast1. Why This Topic Matters I'd been saying "the router forwards it" for several posts now without ever explaining what that forwarding decision actually looks like — so that's where this one starts, br00
ASAbhijeet Shindeinweeklyupdate.hashnode.dev·Jul 23 · 6 min readHow ARP Works & What Makes OSI and TCP/IP Models Different1. Why This Topic Matters Last post I ended on a confession — I'd been treating "ARP resolves the MAC address" as a black box the entire time. Same network, cross network, didn't matter, I just waved 00
ASAbhijeet Shindeinweeklyupdate.hashnode.dev·Jul 19 · 7 min readDefault Gateways, MAC Addresses & IP vs MAC — How Data Actually Finds Its Way Home1. Why This Topic Matters Last post I figured out how a device checks if another device is on its own network — AND the IP against the subnet mask, compare the result. But I stopped right at the edge 00
DEDestiny Erhaborinfreecodecamp.org·Jul 7 · 22 min readHow to Implement Zero-Trust Workload Identity in Kubernetes with SPIFFE, SPIRE, and CiliumYour network policy says: allow traffic from 10.0.1.45. Yesterday, 10.0.1.45 was your payment service. Today, after a rolling deployment, it's your logging agent. Your payment service is now at 10.0.100
AKAkaeze Kosisochukwuinaudrey01.hashnode.dev·Jun 22 · 7 min readStop Googling It: How to Tell If an IP Address Is Public or PrivateIn the past, I have had difficulty understanding when an IP address is public or private, and I end up doing a Google search for every IP address I encounter. Although it's easier to understand the me12V
SKSunil Kumarincoldstartx.hashnode.dev·Jun 17 · 6 min readHow the Web Actually Works: HTTP from the Ground UpI’ve been going through Jim Kurose’s networking lectures lately, and I kept finding myself pausing to re-read the same sections. Not because they were confusing - because things I’d been using for yea10
OOm-Bendreinombendre.hashnode.dev·May 20 · 6 min readHow Your Browser Actually Finds the Correct Server — DNS Resolution ExplainedHave you ever wondered how your browser actually knows where a website exists on the internet? You open your browser and type: google.com or youtube.com Press Enter, and within milliseconds the websit00
IAIkem Adainviolacordis.hashnode.dev·May 12 · 8 min readIntroduction to Computer NetworksEvery time you send a message, join a video call, stream a movie, or open a website, something invisible happens in the background. Your device connects with others, data travels across systems, and i00
