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YPYejun Parkyejunpark3.hashnode.devMay 23 · 14 min read

How the Internet Knows Where You Live: IP Addresses, DHCP, NAT, and the Road to IPv6

Every time you open a browser, stream a video, or send a message, a quietly elegant system is working behind the scenes to make sure your data reaches the right destination — and that the reply finds

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YPYejun Parkyejunpark3.hashnode.devMay 18 · 14 min read

How the Internet Actually Moves Your Data: A Deep Dive into the Network Layer

You type a URL, press Enter, and a webpage appears in under a second. But have you ever wondered what's happening underneath — in the infrastructure that actually moves your request from your laptop t

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AMAscii Mothhash.moth.contactMay 9 · 14 min read

Yggdrasil Network as an Embedded Go Library

Yggdrasil is an experimental overlay IPv6 mesh network. In short, it lets you build a "network on top of a network": each node gets a stable IPv6 address derived from its public key, and that address

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VNVineeth N Kvineethnk.hashnode.devApr 30 · 8 min read

I blocked Tor exit nodes, then I opened Tor Browser

I blocked Tor exit nodes, then I opened Tor Browser A SaaS I work on has no business serving Tor traffic, and the box had no Tor block of any kind on it. A firewall-level deny felt like the clean, sufficient answer: drop the packets at the kernel, n...

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PNPratik N Borkarblog.pratiknborkar.comFeb 11 · 4 min read

Implementing Dual-Stack (IPv4 & IPv6) in Oracle Kubernetes Engine (OKE): Pod Networking and Traffic Flow Explained

As IPv4 exhaustion becomes increasingly real, dual-stack Kubernetes is no longer just an experiment it’s a strategic decision. Recently, I implemented and validated a dual-stack cluster in Oracle Kubernetes Engine on Oracle Cloud Infrastructure, and ...

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NTNityanand Thakurblog.lsnnt.devJan 16 · 2 min read

How i created my own custom ddns script

My ISP (Internet Service Provider) gives me /64 ipv6 address on which i configured a postfix mailserver on port 25 which can directly mail to my laptop. But the problem was that the ipv6 address changed every time i connected to my hotspot. So i crea...

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ASAditya Singhsaditya9211.hashnode.devDec 17, 2025 · 7 min read

The hardest networking problem I have solved yet!

I didn’t set out to “solve a hard networking problem.” I just wanted to open a web UI on my phone. The web UI was File Browser running on my home Linux machine. The goal was boring and practical: Open File Browser from my phone From ANYWHERE (meani...

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LDLightning Developertech-odyssey.hashnode.devDec 17, 2025 · 4 min read

Beyond the Bridge: How IPv6 Restores the Original Internet and Retires NAT

The internet was originally built on a simple yet powerful idea: every device should be able to talk directly to every other device. This concept, known as the end-to-end principle, allowed the early web to thrive. But as the number of connected devi...

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VVladimirdev-vpn.hashnode.devDec 4, 2025 · 3 min read

What Is an IP Address?

An IP address is a unique identifier for a device on a network—much like a home address in the digital world. It allows devices to find each other and exchange data across local and global networks. Types of IP Addresses IPv4 Format: four numbers (0...

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SAShrey Ardeshanashrey-the-evolution-of-internet-addressing.hashnode.devOct 30, 2025 · 5 min read

From Numbers to Networks: The Journey from IPv4 to IPv6

Introduction Every time you send a message on WhatsApp, watch a YouTube video, or connect your Alexa speaker to Wi-Fi, your device quietly performs a digital handshake using something called an IP address. Think of it as the “postal address” of your ...

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#ipv6

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#ipv6

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Trending tags this week

How the Internet Knows Where You Live: IP Addresses, DHCP, NAT, and the Road to IPv6

How the Internet Actually Moves Your Data: A Deep Dive into the Network Layer

Yggdrasil Network as an Embedded Go Library

I blocked Tor exit nodes, then I opened Tor Browser

Implementing Dual-Stack (IPv4 & IPv6) in Oracle Kubernetes Engine (OKE): Pod Networking and Traffic Flow Explained

How i created my own custom ddns script

The hardest networking problem I have solved yet!

Beyond the Bridge: How IPv6 Restores the Original Internet and Retires NAT

What Is an IP Address?

From Numbers to Networks: The Journey from IPv4 to IPv6