AKAkaeze Kosisochukwuinaudrey01.hashnode.dev·2d ago · 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
NNickinnetnoobjourney.hashnode.dev·Jun 7 · 3 min readWhy I'm Starting a Networking & Cybersecurity Journey From Absolute Zero. Hi everyone, My name is Nick, and I am a complete beginner in the world of networking and cybersecurity. I have recently decided to submerge myself into the Networking and Cybersecurity, after being i00
RPRudra Patelinrudrapatel.hashnode.dev·Jun 2 · 9 min readMulti-tier virtual homelab: what I built and what I'd changeI built a segmented network lab on a single laptop which has few Linux containers, a hand-configured router doing firewall, DNS, DHCP and VPN, and WireGuard as the only way in. This post covers the ch10
TLTirthak Likharintirthaklikhar.hashnode.dev·May 25 · 9 min readWhy the OSI Model Diagram in Your Textbook Is IncompleteI spent weeks staring at the OSI model and the Ethernet frame diagram in my notebook. I could label every field. I could recite all seven layers. But I genuinely had no idea what was actually happenin10
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
AYAbhishek Yadavinabhi-url-parameters.hashnode.dev·May 9 · 4 min readURL Parameters vs Query Strings in Express.jsIntroduction When building APIs with Express.js, data is often passed through URLs. Two of the most common ways to send data in URLs are: URL Parameters Query Strings Although both are used in rou00
FGFrances Georgeinventandsubnet.hashnode.dev·Apr 29 · 3 min readHow to create Virtual network (Vnet) and Subnet in Microsoft AzureCreating a Virtual Network (VNet) and Subnet is a fundamental skill when working with Microsoft Azure. It allows you to securely organise and control your cloud resources. What is a VNet and Subnet? V00
RRRuth Rojasinruthr.hashnode.dev·Apr 24 · 3 min read SNMP & ICMP ProtocolsToday I learned some details about a couple of communication protocols while working on a system at work. SNMPSNMP stands for Simple Network Management Protocol. It runs over UDP (User Datagram Protoc00
