2024/10/08
Behind the Scenes: Anycast and Its Impact on CDNs
When looking into content delivery solutions offered by major companies like Cloudflare, Amazon CloudFront, and Google Cloud CDN, you'll find they all provide similar content delivery network service...2024/09/30
Why Mobile Hotspot IPs Are Not What They Seem
When using the same WiFi network, we can easily find each other's IP addresses (192.168.0.x) using ifconfig/ipconfig. This is useful for tasks like testing websites on mobile devices, as CSS may ren...2024/09/25
loopback(127.0.0.1, ::1), localhost, and 0.0.0.0 in Local Development
I found an issue where my backend server was listening on 127.0.0.1:1234, but I couldn't access to it using localhost:1234 in my browser or curl. Initially I thought it’s a backend issue, I found no ...