MMaulanainmauls.hashnode.dev·1d ago · 13 min readHow IPv4 Subnetting Determines Network and Host AddressesIPv4 subnetting is the process of dividing an IP network into smaller logical networks called subnets. A subnet mask determines which part of an IPv4 address identifies the network and which part iden00
SShreyainapi69.hashnode.dev·Aug 30 · 7 min readIf HTTPS Is Encrypted, How Does the Load Balancer Read It?The problem Say you're running api.example.com, and it's not just one server, it's several. api.example.com │ ▼ Load Balancer / \ / \ Server A Server B The cl00
ABAkhilesh Bhayyeindevops-journal.hashnode.dev·Aug 28 · 7 min readNetworking for DevOps: DNS, Security Groups, and the Commands I Use to Debug "Why Won't This Connect"Learning the basics is one thing, but figuring out "Why won't this connect?" when a service refuses to communicate with another service is the first true test. But before jumping to troubleshooting co00
JKJordan Kayinkayos.hashnode.dev·Aug 24 · 5 min readLearning from the Ground UpWelcome to Networking Fundamentals, a series documenting my journey toward a stronger, more practical understanding of computer networking. This introductory post explains why I created the series, ho00
Rrahulkninrahulblog001.hashnode.dev·Aug 7 · 2 min readHow VPN Encryption Actually WorksIf you've ever searched for a VPN, you've probably come across phrases like "military-grade encryption" or "bank-level security." While these terms sound impressive, they rarely explain what actually 00
LLynavoinlynavodrive.hashnode.dev·Jul 30 · 7 min readDesigning a Reliable Runbook for Phone-to-Computer File AccessPhone-to-computer file access is often described as a feature: open the mobile app, select the computer, and retrieve a file. Operating it reliably requires a more precise model. An access request suc00
OPom parhadinomparhad.hashnode.dev·Jul 9 · 6 min readDemystifying the Network Stack: What Actually Happens Under the Hood of an HTTP Request?Every day, we write simple, clean code to connect our frontends to our backends. As full-stack developers or AI engineers, a line like this is almost second nature: const res = await fetch("https://ap00
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
OBOmraj Burnwalinsecurityinfo.hashnode.dev·Jun 15 · 12 min readHow WebRTC Actually Works: A Deep Dive Through Live ExperimentsThe Problem: The Web Was Never Built for Real-Time The web was built on a simple idea: you ask, the server answers. That's HTTP — a request-response model that works beautifully for loading pages, fet00
JJJeji Jamesinjeji-james.hashnode.dev·Jun 15 · 2 min readThe Two IDs Every Device Needs: IP vs MAC AddressesEvery device on a network needs to be identifiable much like humans, who can be recognised by name (changeable) or fingerprint (permanent). Devices have a similar dual-identity system: IP addresses an00
