Cudy TR3000 Review: A Budget OpenWrt Travel Router with VPN
The Cudy TR3000 is a pocket travel router running OpenWrt underneath, with a 2.5GbE WAN port and a built-in VPN client. Unboxing, setup, connecting it to Clo...
Blog / Category
Networking
Networking basics explained properly, plus UniFi, VLANs, DHCP superscopes, routing and the odd DNS record that ruins everything.
8 posts
CloudConnexa + Intune: Zero-Trust Remote Access
Build zero-trust remote access with CloudConnexa, free. Then wire SAML to Entra ID and push OpenVPN Connect through Intune with the Cloud ID pre-filled.
Plan VLANs for a New Site with Network Designer
A practical walkthrough of using networkdesigner.app to plan VLANs and subnets for a new network site
DHCP Congestion on a /24: Superscopes Now, VLANs Later
DHCP congestion on a flat /24: how we bought time with temporary superscopes and a cleanup script, then fixed it properly with VLANs.
Understanding Routing and Network Address Translation (NAT)
How routing moves packets between networks and how NAT lets many devices share one public IP: static NAT, dynamic NAT, PAT and port forwarding.
What Is a VLAN? Tagged, Untagged, PVID and Trunks
VLANs explained from scratch: 802.1Q tagging, tagged vs untagged ports, PVID, voice VLANs for IP phones, trunk ports, and why a trunk is not a LAG.
How Do Computers Talk to Each Other? Networking Basics
Plain-language networking basics: LAN, WAN and Wi-Fi, the first four OSI layers, MAC and IP addresses, TCP vs UDP, DHCP, DNS and what the router does.
installing a Unifi Controller with Docker and Lets Encrypt!
Install Docker and Docker Compose on Ubuntu and run a UniFi controller behind jwilder/nginx-proxy with a Let's Encrypt certificate from one compose file.